Condoms are an effective method of birth control if used with care.
避孕套如果谨慎使用，是一种有效的节育方法。
This medicine is effective if used within three years.
这种药3年以内有效。
If used improperly, it can do harm to you.
如果使用不当，它可以伤害你。
They bless if used well; they curse when abused.
使用得当，它们就赐福于人；滥加使用，它们就降祸于人。
But if used wrongly, it can also lead to harm.
但是一旦被错误地使用，它也能导致伤害。
If used properly, your results should be good.
如果适当的使用，你会感觉相当好。
Computers can fulfill a useful function if used properly.
如果运用得当电脑能够起很大作用。
This can prove to be extremely powerful if used correctly.
如果正确使用，本功能将极其强大。
If used for power generation can solve part of the energy crisis.
若用于发电可以解决一部分能源危机。
If used to empty talk, the most respectable one will lose dignity.
如果习惯于说空话，最可敬的人也会失掉尊严。
It can affect the performance of an application if used improperly.
如果不当使用，会影响应用程序的效能。
It can be one of the best brand communication tools, if used right.
它通过回忆的方式传达了品牌标识的最高级的信息。
If used well, the book is the best; if abused, the book is the worst.
如果使用得好，书是最好的东西；如果滥用了，书就是最坏的东西。
Images can be very powerful and effective if used with careful intention.
如果精心设计，图片将会非常有说服力和效果。
Otherwise, if used with all of the parts, both my daughter and I love them!
另外如果用了所有的部件，我和我的女儿都爱它。
Debuggers would have been useless and would have rebooted the computer if used.
调试器毫无用处并且可能使系统重起。
Meet or over MIL-R-83725 standard. If used as load switch, please contact GTVAC.
符合或超过MIL-R-83725标准。负载开关应用，请向工厂咨询。
If used properly, The RSI can be a very valuable tool in interpreting chart movement.
如果使用正确的话，RSI在解释图表的运动规律发面会成为一个很有用的工具。
If used properly, the product will not attack plastics, rubber, paint, textiles, glass or metal.
如果使用得当，该产品将不会损伤塑料，橡胶，涂料，纺织，玻璃或金属。
If special clothes are used, they should truly represent a given period.
如果使用特殊服装，那他们应该真正代表一个特定的时期。
What other variables could be used if the racial concept is thrown out?
如果种族概念被抛弃，还可以使用哪些变量呢？
I'll try if I know all the things I used to know.
如果我知道所有我过去知道的事情，我会试一试。
If the toilet paper has been used up, buy some more!
如果卫生纸用完了，再买一些！
When you are used to physical Labour, you feel uncomfortable if you're idle.
劳动惯了，闲着就不舒服。
This option should be used if you want the same behavior as regular tables.
如果您希望获取与普通表相同的行为，则应该使用此选项。
If rules are used, they should be simple and understood by everyone.
如果这些规则要被应用，它们应该是简单易懂的。
If they are not used carefully, then resistance can develop.
如果它们未得到审慎使用，就可形成耐药性。
If they are not used carefully, then resistance can develop.
如果它们未得到审慎使用，就可形成耐药性。
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