如果

all the───所有的

of theirs───他们的

if not───如果不；不然的话

none the───一点也不

We will contact you again if the need arises.───如果有必要，我们会再次和你联系。

If the muscle is stretched again it could even tear.───这块肌肉再受到拉伸的话，它甚至可能会拉伤。

If the job's that good, you'll have stacks of money.───如果那份工作真那么好，你就会有成堆的钱。

The difference, or carry, would be the main source of return; if the bonds rose in price as well, so much the better.───其中的差额或携带将是回报的主要来源，如果债券的价格上扬那就更好了，多多益善。

If the doctor had come a little earlier last night, he would not have had a high fever.───如果昨晚医生来得早一点他今天就不会发高烧了。

A poset is called a symmetric chain decomposition if the poset can be expressed as a disjoint union of symmetric chains.───如果一个偏序集可以分解成不相交的对称链之并，则称此偏序集具有对称链分解。

If the door wasn't open give it a kick.───门要是不开就踹一下。

Fuller Thompson next wants to analyze other large representative community studies to see if the link crops up in those as well.───福勒·汤普森下一个希望是对另外一个有代表性的群体研究分析看这个关系是否在他们之中出现新的状况。

An authentication error will occur if the user trying to connect is not same as the user whose credential is in the Kerberos cache.───如果试图连接的用户与其凭证保存在Kerberos缓存中的用户不一致，将发生身份验证错误。

The eye is blind if the mind is absent. 

If the shoe fits, wear it. 

If the ox falls, whet your knife. 

Justice must be done even if the sky falls. 

If the devil finds a man idle, he’ll set him to work. 

If the old dog barks, he gives counsel. 

If the cap fits, wear it. 

If the beard were all, the goat might preach. 

If the sky falls, we shall catch larks.