burst in on

片語動詞所屬單字burst

burst in on — 片語動詞

1. To enter a room or place suddenly and interrupt someone.

1.片語動詞
釋義

突然闖入打斷

To enter a room or place suddenly and interrupt someone.

例句

Sara burst in on her brother while he was studying.

Did you have to burst in on our private conversation?