Definition
To exist or occur briefly in a place and then disappear.
来来去去
The strange pain always comes and goes.
这种奇怪的疼痛总是时有时无。
Customers come and go in the store; it is busy from morning till night.
店里的顾客来来往往；从早到晚都很忙碌。
She felt the thought came and went.
她感觉到这个想法忽隐忽现。