一听到这个悲伤的消息，她突然哭了起来。

Upon hearing the sad news, she ___burst ___into tears.

当喜剧演员讲笑话时，人群突然大笑起来。

The crowd ___burst ___into laughter when the comedian told the joke.

他喜极而泣。

He was so overwhelmed with joy that he ___burst ___into tears.