| 正面 | 5289.rotation 英 [rə(ʊ)'teɪʃ(ə)n]美 [ro'teʃən]     |
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| 背面 |      释义： 1. ad- "to" + ol- "al-, nourish" + -esc- (inchoative, 表始动词) + -ent.2. => to be nourished, begin to nourish, begin to grow.3. 由此引申为：青春期的，未成熟的，成长中的。n. 旋转；循环，轮流 例句： 1. Within the project, trees are selectively cut on a 25-year rotation.按照这个计划，将以25年为一个轮伐期对树木进行有选择的砍伐。 rotation (n.)1550s, from Latin rotationem (nominative rotatio) "a turning about in a circle," noun of action from past participle stem of rotare "turn round, revolve, whirl about, roll," from PIE *ret- "to run, roll" (see rotary)." |