| 单词 | 单胎 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔WEIGH〕Twins and triplets are expected to have lower birth weights than single infants. 双胞胎和三胞胎的出生体重应该比单胎轻。朗文写作活用〔uniparous〕Having produced only one offspring; primiparous.单胎的：已经且仅生一子的；初产的美国传统 |
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