what if:如果...將會怎么樣
例如:
1.What if it is true?
如果這是真的又該如何呢?
2.What if he doesn't agree?
如果他不同意該怎么辦呢?
3.What if he comes back now?
如果他現(xiàn)在回來怎么辦?
4.What if I fail!
即使我失敗了又怎樣!
5.What if the boy's parents should die?
如果那男孩的父母死了該怎么辦呢?
only if:conj.只有當(dāng)(只是在...的時候)
例如:
1.The company will succeed only if it have sufficient backing.
只有當(dāng)該公司獲得足夠的資助,它才會成功.
2.A compound proposition that has components joined by the word and or its symbol and is true only if both or all the components are true.
綜合命題由和或其符號所連接的子句組成的復(fù)合命題,只有當(dāng)所有子句為真時,該句才為真
3.I can buy the house only if a mortgage for 2000 dollars is available.
只有拿到兩千美元的抵押貸款,我才買得起那棟房子.
4.Only if I get a job will I have enough money to go to school.
我只有找到了工作才有足夠的錢上學(xué).