come open/undone/loose etcBECOMEto become open etc 松开，解开 His shoelace had come undone. 他的鞋带松了。
The rope came loose. 绳子松开了。
come open/undone/loose etc• Then she felt something on her arm and discovered her scarf had come undone.• Some ropes had come loose and were swinging wildly in the wind.• Think of all the things that come loose around the house.• His heart felt it would come loose in his body, so wildly was it beating.• When the Thayer principalship came open in the summer of 1981, Littky applied and reentered the educational world.• As she reached the doors they came open, the button pressed by two people outside.• Then sprinkle on water and re-trowel in come loose-use an emulsion paint brush.
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