migratory相关的词根或词缀是: migr

Millions of migratory geese are in their northern breeding grounds .

成千上万迁移的鹅群来到北方生育繁殖。

Can migratory birds carry h5n1 over long distances ?

候鸟会长距离携带h5n1型禽流感病毒吗？

Altering the migratory and reproductive patterns of the world 's wildlife has proved more challenging .

改变世界野生动物迁徙和繁衍模式的工作已经证明更具挑战性。

Little is known about the migratory habits of these huge fish .

对于这些大鱼的洄游习性知之甚少。

For many ordinary citizens , dual passports still seem dodgy : a convenience for the cosmopolitan few or a sop to the menacing many , rather than a natural feature of a migratory world .

对于普通市民来说，双重国籍还是很奇怪：是对少数定居不同大都市的人或者一些不重要的坏人提供方便而不是一个自然的移民世界的特征。