migration [maɪˈgreɪʃn]以下由轻松背单词网站提供
单词级别第8级基本释义n.迁移,移居,(鸟类等的)迁徙英英释义the movement of persons from one country or locality to another参考例句Swallows begin their migration south in autumn. 燕子在秋季开始向南方迁移。He described the vernal migration of birds in detail. 他详细地描述了鸟的春季移居。 推荐阅读 |