the opposite sex
noun [ S, + sing/pl verb ] uk/ˌɒp.ə.zɪt ˈseks/ us/ˌɑː.pə.zɪt ˈseks/
异性
someone who is male if you are female, and female if you are male
It's not always easy to meet members of the opposite sex. 并不总是那么容易遇到异性。
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