動詞 burst out:

1. give sudden release to an expression
2. appear suddenly
   同義詞：pop out
3. erupt or intensify suddenly
   同義詞：erupt, irrupt, flare up, flare, break open

1. Scarcely had she heard the sad story when she burst out crying.
   她一聽到這悲傷的消息，就失聲痛哭。
2. She burst out laughing and then checked herself.
   她突然爆笑起來，然後又突然止住。
3. He burst out crying like a child.
   他像孩子一樣忽然哭起來。
4. Burst out laughing; burst into tears.
   突然大笑起來; 突然哭起來
5. She burst out laughing.
   接著她忽然笑起來。