migration是什么意思,migration怎么读,
英式发音:[maɪˈɡreɪʃn] 美式发音:[maɪˈɡreɪʃn]
cell migration细胞移行
migration velocity渗移速度;迁动速度
词根:migrate
adj.migrant 移居的;流浪的
migratory 迁移的;流浪的
n.migrant 候鸟;移居者;随季节迁移的民工
migrator 移居者;候鸟
vi.migrate 移动;随季节而移居;移往
vt.migrate 使移居;使移植
3.But was there one major wave of migration across the Bering Strait into the Americas, or several?
但是有没有一次或几次大移民浪潮是穿过白令海峡到达美洲的呢?
4.As recently as five years ago, US migration was twice the rate of European Union states.
就在5年前,美国的移民率还是欧盟国家的两倍。
5.Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds.
某些海鸟在每年春季迁徙到北方繁殖地时,以这些鸟蛋为食。
6.Was there only one outward migration from a single point in Asia, or several from different points?
在亚洲,是否只有一个或多个移民点向外迁移?