彼女の表情がさっと変わった。

Sentence Analyzer

彼女の表情がさっと変わった。

English Translation

Her expression underwent a sudden change.

Furigana

彼女(かのじょ)の表情(ひょうじょう)がさっと変(か)わった。

Romanji

Kanojo no hyōjō ga satto kawatta.

Words

彼女 (かのじょ)

she; her; her; girlfriend; sweetheart

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

表情 (ひょうじょう)

facial expression; countenance; look; appearance; expression (vocal, etc.)

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

颯と (さっと)

quickly (esp. actions); suddenly (esp. wind, rain, etc.)

変わる (かわる)

to change; to be transformed; to be altered; to vary; to move to; to be different; to be uncommon; to be unusual