单词：duplications
[医] 重迭, 双折, 复制
n. the act of copying or making a duplicate (or duplicates) of something
duplications的用法和样例：
例句
- Germ-line rearrangements can also yield gene duplications, which would be trimmed back under the sword of reductive evolution.生殖种系的重排也能产生重复基因，后者会在还原式进化的利剑下重新被修剪为单拷贝。
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