名词
中文翻译：妊娠
同义词：
['pregnant', 'gestation', 'gravid', 'pregnantness例句：1. She is pregnant with twins.（她怀有双胞胎。）']
例句：
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1. She is pregnant with twins.
她怀有双胞胎。
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2. The pregnancy was complicated by morning sickness.
怀孕过程中出现了晨吐。
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3. Pregnancy tests are used to determine if a woman is pregnant or not.
怀孕测试用于确定女性是否怀孕。