彼の頭脳の働きは活発だった。

Sentence Analyzer

頭脳 働き 活発 だった

English Translation

The functions of his brain were very active.

Furigana

(かれ)頭脳(ずのう)(はたら)きは活発(かっぱつ)だった。

Romanji

Kare no zunō no hataraki wa kappatsu datta.

Words

(かれ)
he; him; his; boyfriend
()
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
頭脳 (ずのう)
head; brains; intellect; understanding
働き (はたらき)
work; labor; labour; achievement; performance; ability; talent; salary; income; earnings; action; activity; workings; function; operation; movement; motion; conjugation; inflection
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
活発 (かっぱつ)
vigor; vigour; active; lively
()
be; is; indicates past or completed action; indicates light imperative

Kanji

Readings: ヒ、 かれ、 かの、 か.の
Meanings: he, that, the
Readings: トウ、 ズ、 ト、 あたま、 かしら、 -がしら、 かぶり
Meanings: head, counter for large animals
Readings: ノウ、 ドウ、 のうずる
Meanings: brain, memory
Readings: ドウ、 リュク、 リキ、 ロク、 リョク、 はたら.く
Meanings: work, (kokuji)
Readings: カツ、 い.きる、 い.かす、 い.ける
Meanings: lively, resuscitation, being helped, living
Readings: ハツ、 ホツ、 た.つ、 あば.く、 おこ.る、 つか.わす、 はな.つ
Meanings: departure, discharge, publish, emit, start from, disclose, counter for gunshots