1·While they both listened, the bar was unfastened, the key was turned, and the door flew open.
当他们都在听的时候，门闩被打开了，钥匙拧了拧，门被打开了。
2·The buttons came unfastened.
扣子松开了。
3·The button on my coat came unfastened.
我大衣上的扣子脱了。
4·He unfastened the buttons of his shirt.
他解开了衬衣纽扣。
5·The buttons on my coat came unfastened.
我上衣的钮扣脱线了。
6·The buttons on my coat came unfastened.
你把大衣的钮扣扣错了。
7·The buttons on my coat came unfastened.
他的衣服前面扣上钮扣。
8·Designed to be unfastened or disconnected without.
设计好可以没有的被解开或者分离。
9·And they cannot be unfastened without the help of a guru.
没有古鲁的帮助，他们不能把它们解开。
10·She unfastened the latch quietly without disturbing anybody.
她蹑悄悄地拉开门闩，没有惊动任何人。