名词
中文翻译：前庭环
同义词：
['vaginal ring', 'intrauterine device (IUD)', 'intrauterine contraceptive device (IUCD)']
例句：
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1. She wore a vaginal ring to prevent pregnancy.
她戴了一个阴道环以防止怀孕。
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2. The IUD is a common form of birth control.
IUD是常见的避孕方法之一。
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3. After her divorce, she decided to use the IUCD for birth control.
离婚后，她决定使用IUCD进行避孕。