"burst into" in Chinese (Traditional)
突然進入突然開始（哭/笑等）
Definition
突然強烈地開始做某事，例如哭、笑或唱歌；也可以指突然闖入某個地方。
Usage Notes (Chinese (Traditional))
常用於表達情感突然爆發，如「burst into tears」（突然哭了起來）、「burst into laughter」（突然笑了起來），也可以用於突然闖入某地。不要用於一般動作如跑步。
Examples
She burst into tears when she heard the news.
她聽到消息後**突然哭了起來**。
The children burst into laughter at the funny joke.
孩子們聽了笑話後**突然笑了起來**。
Suddenly, he burst into the classroom, looking excited.
突然，他**闖進了**教室，看起來很興奮。
When they announced her name, she burst into song.
當他們叫到她的名字時，她**突然唱了起來**。
He saw the mess and burst into anger.
他看到亂七八糟的場面，**突然生氣了起來**。
They all burst into applause when the show ended.
表演結束時，他們大家**突然鼓掌起來**。