1、
Condom is a popular contraceptive as well as disease prevention method in the United States.
在美国,避孕套是一种受欢迎的可避孕可预防传染病的工具.
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2、
From the standpoint of science, any contraceptive method is as natural or artificial as any other.
从科学观点来看, 任何避孕方法既是自然的也是人为的.
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