burst into

1. 突然…起来
If you burst into tears, laughter, or song, you suddenly begin to cry, laugh, or sing.

burst into

e.g. She burst into tears and ran from the kitchen.
她突然哭起来，跑出了厨房。
e.g. ...books that cause adults to burst into helpless laughter.
让成年人忍俊不禁的书籍

2. （花、叶等）突然绽放，突然长出
When plants burst into leaf or flower, their leaves or flowers suddenly open.

e.g. ...rows of wallflowers promising to burst into bloom.
一排排桂竹香含苞待放

3. 突然变成
If you say that something bursts into a particular situation or state, you mean that it suddenly changes into that situation or state.

e.g. This weekend's fighting is threatening to burst into full-scale war...
本周末的冲突有升级成全面战争的危险。
e.g. The engine burst into life.
引擎突然发动了。

4. to burst into flames -> see flame

1. 闯入;突然发作：burst into laughter 突然笑起来 | burst into 闯入;突然发作 | burst out laughing 突然笑起来

2.

2. 闯进;突然...起来：burn up烧起来,旺起来;烧完,烧尽 | burst into闯进;突然...起来 | but for除...以外,倘没有,除非

3. 闯入：burst into tears 突然大哭 | burst into 闯入 | burst mode 触发模式

4.

4. 突然闯入：continue to do 继续做...... | burst into 突然闯入 | be to do sth. 应当做某事