女の子達は彼のジョークを聞いたとたんに笑い出した。

Sentence Analyzer

English Translation

The girls burst into laughter when they heard his joke.

Furigana

女(おんな)の子達(こたち)は彼(かれ)のジョークを聞(き)いたとたんに笑(わら)い出(だ)した。

Romanji

Onnanokotachi wa kare no jo-ku o kiita totanni waraidashita.

Words

は (は)

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

彼 (かれ)

he; him; his; boyfriend

の (の)

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

ジョーク (ジョーク)

joke

を (を)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

聞く (きく)

to hear; to listen (e.g. to music); to ask; to enquire; to query; to learn of; to hear about; to follow (advice); to comply with; to smell (esp. incense); to sample fragrance

途端に (とたんに)

just as; in the act of; as soon as; at the moment that

笑う (わらう)

to laugh; to smile; to sneer; to ridicule; to be dumbfounded; to be flabbergasted