spermicide
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尽管大多数避孕套都含有杀精剂,但也有一些是不含的。
Although most condoms contain spermicide, there are some manufactured without.
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然而,实际上杀精剂本身就不是一个好办法,那么请保证将二者结合起来使用。
However, spermicide on its own is actually a pretty poor method, so make sure you do combine them.
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