crop up
phrasal verbcrop up
- to appear or happen, especially when it is not expected
（尤指意外地）出现，发生 - His name just cropped up in conversation.
交谈时无意中就提到了他的名字。 - I'll be late—something's cropped up at home.
我要晚一点来，家里突然出了点事。
- His name just cropped up in conversation.