break out (occur, happen suddenly)
出现
A:Please tell us the exact time when the big fire broke out.
A:请告诉我们失火发生的确切时间。
B:The exact time? Let me think, You know, it happened at night.
B：确切时间?让我想一想。你知道，火灾是晚上发生的。
A:But we need the exact time, What time?
A:但我们需要知道确切的时间，那是几点钟?
B:Oh, I remember, It was about 10 o'clock. When I was about to go to bed, suddenly I heard "help" outside.
B：噢，我想起来了。那时大约10点半，当我正准备上床睡觉时，突然听见门外有人在喊“救命”。