noun 下载 🔗分享 避孕药,避孕措施。 A mechanism or means by which conception as a result of sexual intercourse can be prevented or made less likely. Examples : "Using contraceptives helps prevent unwanted pregnancies. " 使用避孕措施有助于防止意外怀孕。 medicine sex technology device family body biology science 与AI对话词汇游戏阅读练习