| 单词 | rotation | 
| 释义 | rotation  (roʊteɪʃən  ) Word forms:  rotations   1. variable noun Rotation is circular movement. A rotation is the movement of something through one complete circle.   ...the daily rotation of the Earth upon its axis. [+ of]    Synonyms:  revolution, turning, turn, wheel    2. uncountable noun [oft in NOUN] The rotation of a group of things or people is the fact of them taking turns to do a particular job or serve a particular purpose. If people do something in rotation, they take turns to do it.   He grew a different crop every year, which is called crop rotation.    Once a month we met for the whole day, and in rotation each one led the group.   Translations: Chinese: 旋转 Japanese: 回転 | 
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