如果使用得當(dāng)，避孕套是很有效的避孕手段。Condoms are an effective method of birth control if used with care.雖然多數(shù)避孕套含有殺精劑，但也有一些是不含的。Although most condoms contain spermicide, there are some manufactured without.想到老師將分發(fā)避孕套給學(xué)生使一些家長(zhǎng)憤慨不已。The prosp...