all-clear
释义
adj. 放行；空袭警报信号解除的；无危险信号的
例句
1·The ship was given the all -clear to sail.
这艘船获得了航行许可。
《牛津词典》
2·There were 15 minutes between the first air raid alert and the sounding of the all -clear signal.
从第一个空袭警报到警报解除号音其间有15分钟。
《柯林斯英汉双解大词典》
3·Nothing was found and the store was given the all -clear by opening time this morning.
什么也没找到，商店在今早营业时间前解除了警报。
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