only when

英 [ˈəʊnli wen]

美 [ˈoʊnli wen]

只有当; 除非

英英释义

adv

Only when food and clothing are enough can one behave properly.
衣食足而知礼仪。
He was rescued only when an exhausted friend swam ashore
当一个精疲力尽的友人游上岸后他才获救。
A widely known sentence struck my mind that only when you lose something will you know to cherish it.
有一句耳熟能详的话突然间鸣在我的脑际：只有失去了才懂得珍惜。
Only when you can break free, can a whole new world open up to you.
只有当你打破常规，那么一个全新的世界将向你敞开。
Such events occur only when the external conditions are favorable.
这种事情只有在外部条件有利时才会发生。
She looked quite young from a distance and only when I saw her at close quarters did I realize how old she really was.
从远处看她显得很年轻，但走近一看，我才明白她已有很大年纪了。
Only when agriculture is fully developed can industry have sufficient materials and markets.
只有农业发展了，工业才有足够的原料和市场。
Only when this is properly done can you really consider making changes in your system.
仅当正确地完成了这些工作之后，您才可以考虑对系统进行实际的更改。
This limits your process to grow only when needed.
这就将您的流程限制为仅在需要时才增长。
Only when a reservoir is built here can we solve our irrigation problem.
除非在这里修个水库，才能解决灌溉问题。