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日本(にっぽん)問題(もんだい)(てん)として、人口(じんこう)減少(げんしょう)長時間(ちょうじかん)労働(ろうどう)男女(だんじょ)格差(かくさ)について(くわ)しく説明(せつめい)しています。

The video discusses Japan's issues, focusing on population decline, long working hours, and gender inequality.
538 words
今日(きょう)は、「日本(にっぽん)問題(もんだい)(てん)」について、お(はな)ししていきましょう。まずは、人口(じんこう)()っていることについてです。

今日(きょう)

N5
n, adv
today; this day
n, adv
these days; recently; nowadays

N5
prt
indicates sentence topic(pronounced わ in modern Japanese)
prt
indicates contrast with another option (stated or unstated)

()(ほん)

N3
n
Japan

N5
prt
indicates possessive(occasionally ん, orig. written 乃 or 之)
prt
nominalizes verbs and adjectives

(もん)(だい)(てん)

N2
n
the problem (at issue); the point at issue; problematic issue; problem

について

N4
exp
concerning; regarding
exp
per (e.g. 100 yen per person); for every

(はな)

N4
n
story; tale
n
talk; discussion

して

N5
prt
by (indicating means of action); as (a group, etc.)
prt
indicates the agent in a causative construction(as 〜をして in modern Japanese)

いきましょう

N5
v5k-s, vi
to go; to move (towards); to head (towards); to leave (for)
v5k-s, vi
to move through; to travel across; to walk along (e.g. a road)

まず

N4
adv
first (of all); firstly; to begin with; before anything else
adv
probably; most likely; almost certainly; virtually

(じん)(こう)

N4
n
population
n
common talk

N5
prt
indicates sentence subject (occasionally object)
prt
indicates possessive (esp. in literary expressions)

()って

N3
vi, v5r
to decrease (in size or number); to diminish; to abate

こと

N3
n
thing; matter
n
incident; occurrence; event; something serious; trouble; crisis

です

N5
cop, cop-da
be; is(plain copula)
日本(にっぽん)人口(じんこう)は、()(つづ)けています。人口(じんこう)一番(いちばん)(おお)かったのは、2010(ねん)です。2010(ねん)から、人口(じんこう)()(つづ)けています。

()(ほん)

N3
n
Japan

N5
prt
indicates possessive(occasionally ん, orig. written 乃 or 之)
prt
nominalizes verbs and adjectives

(じん)(こう)

N4
n
population
n
common talk

N5
prt
indicates sentence topic(pronounced わ in modern Japanese)
prt
indicates contrast with another option (stated or unstated)

()

N3
vi, v5r
to decrease (in size or number); to diminish; to abate

(つづ)けて

N3
aux-v, vt, v1
to continue; to keep up; to keep on

います

N5
suffix
indicates continuing action (to be ...ing)

N5
prt
indicates sentence subject (occasionally object)
prt
indicates possessive (esp. in literary expressions)

(いち)(ばん)(おお)かった

N3
adj-i, exp
most numerous

2010(にせんじゅう)(ねん)

N5
ctr
counter for years (e.g. of an era), grades (e.g. school)

です

N5
cop, cop-da
be; is(plain copula)

から

N5
prt
from (e.g. time, place, numerical quantity); since
prt
from (originator); by
これは、とても(おお)きな問題(もんだい)です。人口(じんこう)()っている理由(りゆう)は、(おも)(ふた)つあります。

これ

N5
pn
this; this one(indicating an item near the speaker, the action of the speaker, or the current topic)
pn
this person(usu. indicating someone in one's in-group)

N5
prt
indicates sentence topic(pronounced わ in modern Japanese)
prt
indicates contrast with another option (stated or unstated)

とても

N4
adv
very; awfully; exceedingly(とっても is more emphatic)
adv
(not) at all; by no means; simply (cannot)(before a negative form)

(おお)きな

N5
adj-pn
big; large; great

(もん)(だい)

N5
n
question (e.g. on a test); problem
n
problem (e.g. societal, political); question; issue; subject (e.g. of research); case; matter

です

N5
cop, cop-da
be; is(plain copula)

(じん)(こう)

N4
n
population
n
common talk

N5
prt
indicates sentence subject (occasionally object)
prt
indicates possessive (esp. in literary expressions)

()って

N3
vi, v5r
to decrease (in size or number); to diminish; to abate

()(ゆう)

N3
n
reason; pretext; motive

(おも)

N3
adv
mainly; primarily

(ふた)

N5
num
two

あります

N4
v5r-i, vi
to be; to exist; to live(usu. of inanimate objects)
v5r-i, vi
to have
(ひと)つは、()まれる(あか)ちゃんが(すく)なくなっていることです。もう(ひと)つは、お年寄(としよ)りの(かず)()えていることです。

(ひと)

N5
num
one
n
for one thing(often used in itemized lists)

N5
prt
indicates sentence topic(pronounced わ in modern Japanese)
prt
indicates contrast with another option (stated or unstated)

()まれる

N3
v5m, vt
to give birth; to bear (child); to lay (eggs)
vt, v5m
to produce; to yield; to give rise to; to deliver

(あか)ちゃん

N4
n
baby; infant

N5
prt
indicates sentence subject (occasionally object)
prt
indicates possessive (esp. in literary expressions)

(すく)なく

N5
adj-i
few; a little; scarce; insufficient; seldom

N5
prt
don't(prohibitive; used with dictionary form verb)
prt
do(imperative (from なさい); used with -masu stem of verb)

N5
prt
you said; he said; she said; they said(casual quoting particle)
prt
even if(after a verb in the past tense)

こと

N3
n
thing; matter
n
incident; occurrence; event; something serious; trouble; crisis

です

N5
cop, cop-da
be; is(plain copula)

もう(ひと)

N5
exp
another; one more
exp, adv
even more

(とし)()

N3
adj-no, n
old person; elderly person; senior citizen

N5
prt
indicates possessive(occasionally ん, orig. written 乃 or 之)
prt
nominalizes verbs and adjectives

(かず)

N5
n
number; amount

()えて

N4
v1, vi
to increase; to multiply(殖える usu. refers to population growth or capital appreciation)
まず、(あか)ちゃんが(すく)なくなっている理由(りゆう)についてです。これは、結婚(けっこん)をしない(ひと)()えているからです。

まず

N4
adv
first (of all); firstly; to begin with; before anything else
adv
probably; most likely; almost certainly; virtually

(あか)ちゃん

N4
n
baby; infant

N5
prt
indicates sentence subject (occasionally object)
prt
indicates possessive (esp. in literary expressions)

(すく)なくなって

N5
vi, v5r, exp
to lessen; to decrease; to diminish

()(ゆう)

N3
n
reason; pretext; motive

について

N4
exp
concerning; regarding
exp
per (e.g. 100 yen per person); for every

です

N5
cop, cop-da
be; is(plain copula)

これ

N5
pn
this; this one(indicating an item near the speaker, the action of the speaker, or the current topic)
pn
this person(usu. indicating someone in one's in-group)

N5
prt
indicates sentence topic(pronounced わ in modern Japanese)
prt
indicates contrast with another option (stated or unstated)

(けっ)(こん)

N5
vi, vs, n
marriage

N5
prt
indicates direct object of action
prt
indicates subject of causative expression

(ひと)

N5
n
person; someone; somebody
n
human beings; mankind; man; people; humans

()えて

N4
v1, vi
to increase; to multiply(殖える usu. refers to population growth or capital appreciation)

から

N5
prt
from (e.g. time, place, numerical quantity); since
prt
from (originator); by