| 单词 | lengthen |
| 释义 | lengthen 构词法3100 全国卷频次：0 /ˈleŋθən/ v. lengthens 0 lengthening 1 lengthened 0 使变长；变长；使延长；延长 高考真题原句提选：Researchers are working on treatments that lengthen the life span (寿命) of mice by 50 percent at most.研究人员正在研究将小鼠的寿命最多延长50%的疗法。While running regularly can’t make you live forever, the review says it is more effective at lengthening life than walking, cycling or swimming.虽然经常跑步不能让你长生不老，但评论说它比步行、骑自行车或游泳更有效地延长了寿命。 |
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