子供たちはやけに静かだった。

子供たちはやけに静かだった。

The children were being very quiet.

子供(こども)たちはやけに静(しず)かだった。

Kodomotachi wa yakeni shizuka datta.

子供達 (こどもたち)

children

は (は)

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

やけに (やけに)

awfully; frightfully; desperately; violently; unduly; extremely

静か (しずか)

quiet; silent; slow; unhurried; calm; peaceful

だ (だ)

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

Readings: シ、ス、ツ、こ、 -こ、ね

Meanings: child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac

Readings: キョウ、ク、クウ、グ、そな.える、とも、 -ども

Meanings: submit, offer, present, serve (meal), accompany

Readings: セイ、ジョウ、しず-、しず.か、しず.まる、しず.める

Meaning: quiet