核兵器は人類にとって脅威だ。

核兵器は人類にとって脅威だ。

Nuclear weapons are a threat to the race.

核兵器(かくへいき)は人類(じんるい)にとって脅威(きょうい)だ。

Kakuheiki wa jinrui nitotte kyōi da.

核兵器 (かくへいき)

nuclear weapons

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

人類 (じんるい)

mankind; humanity

に取って (にとって)

to; for; concerning; as far as ... is concerned; regarding

脅威 (きょうい)

threat; menace

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Reading: カク

Meanings: nucleus, core, kernel

Readings: ヘイ、ヒョウ、つわもの

Meanings: soldier, private, troops, army, warfare, strategy, tactics

Readings: キ、うつわ

Meanings: utensil, vessel, receptacle, implement, instrument, ability, container, tool, set

Readings: ジン、ニン、ひと、 -り、 -と

Meaning: person

Readings: ルイ、たぐ.い

Meanings: sort, kind, variety, class, genus

Readings: キョウ、おびや.かす、おど.す、おど.かす

Meanings: threaten, coerce

Readings: イ、おど.す、おど.し、おど.かす

Meanings: intimidate, dignity, majesty, menace, threaten