戦争中は大変な時代だった。

戦争中は大変な時代だった。

We had terrible times during the war.

戦争中(せんそうちゅう)は大変(たいへん)な時代(じだい)だった。

Sensōchū wa taihenna jidai datta.

は (は)

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

大変 (たいへん)

very; greatly; immense; enormous; great; serious; grave; dreadful; terrible; difficult; hard; major incident; disaster

時代 (じだい)

period; epoch; era; age; the times; those days; oldness; ancientness; antiquity; antique; period piece

だ (だ)

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

Readings: セン、いくさ、たたか.う、おのの.く、そよ.ぐ、わなな.く

Meanings: war, battle, match

Readings: ソウ、あらそ.う、いか.でか

Meanings: contend, dispute, argue

Readings: チュウ、なか、うち、あた.る

Meanings: in, inside, middle, mean, center

Readings: ダイ、タイ、おお-、おお.きい、 -おお.いに

Meanings: large, big

Readings: ヘン、か.わる、か.わり、か.える

Meanings: unusual, change, strange

Readings: ジ、とき、 -どき

Meanings: time, hour

Readings: ダイ、タイ、か.わる、かわ.る、かわ.り、か.わり、 -がわ.り、 -が.わり、か.える、よ、しろ

Meanings: substitute, change, convert, replace, period, age, counter for decades of ages, eras, etc., generation, charge, rate, fee