| 单词 | 铁和叶酸 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔enrich〕Flour is enriched with niacin, iron, and folic acid.面粉添加了烟酸、铁和叶酸。外研社新世纪〔frequently〕Iron and folic acid supplements are frequently given to pregnant women.铁和叶酸补充剂常配给孕妇服用。外研社新世纪 |
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