劳动，反复操作的机械性活动，集中在某些特定肌群、关节。有经验的，会安排几个不同的劳作，串插着干。

来源: fuz 于 2023-11-26 13:36:13 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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