1. break in;smash in 闖入;破門而入
The police burst in and told everyone to stand still. 警察闖了進來,叫大家站著不動。
They had to burst the door in because they had lost the key. 他們丟了鑰匙,只好破門而入。
2. interrupt 打斷
Father told his son not to burst in while adults are talking. 父親叫他兒子不要打斷大人的談話。
3. appear suddenly 突然出現
He'll be bursting in upon us at any moment. 他會隨時突然出現在我們面前。
We were talking about him when he burst in. 我們正談到他時,他突然來了。