如果不的英文

had it not been for the alarm clock she wouldn't have been late

had it not been for the alarm clock she wouldn’t have been late

you should not go rafting unless you know how to swim, and you should always wear a lift jacket

• 如果:    if; in case; in th ...
• 不:    a block of wood
• 除非，如果不:    unless

例句与用法

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1. Iron corrodes unless it is greased or kept clean .
   如果不涂油或保持清洁铁便会腐蚀。
2. Without the veneer, he would be exposed immediately .
   如果不披着一层外皮，他马上就会暴露。
3. He might otherwise have quarrels with his relatives .
   如果不这样做，他们就可能和亲属发生争吵。
4. This is hard to see without reference to a globe .
   如果不参照着一个地球仪来看，这是很难理解的。
5. Unless you work harder , you will not pass the examination .
   如果不加紧用功，你就不能通过考试。