burst out smiling (bāsuto auto sumairingu)

Phrasal-verb Emotion

意味

to suddenly start smiling widely

突然に広く笑い出す (totsuzen ni hiroku warai dasu)

例文

"When she saw the surprise gift, she burst out smiling."

"サプライズギフトを見たとき、彼女は突然大きく笑い出した。" (Sapuraizu gifuto o mita toki, kanojo wa totsuzen ōkiku warai dashita.)