| 例句 |
My shoelace is undone. = My shoelace has come undone.我的鞋带松开了。Be careful! Your shoelaces have come undone.小心！你的鞋带松开了。My button's come undone again.我的扣子又开了。She was repairing Billy's trousers, where the seam had come undone.她在补比利的裤子，线缝松开了。One of his shoelaces had come undone.他的一根鞋带松开了。His bow tie had come undone.他的领结松开了。 |