No clear information about the source of the Nigerian outbreak is presently available, but the country is known to lie along a flight route for birds migrating from central Asia.

目前尚无关于尼日利亚疫情暴发源头的明确信息，但是已知该国位于鸟类从中亚迁徙的飞行路线。

youdao

If no new V6 node is to be added to the cell after migrating the deployment manager, the entire cell may be run in compatibility mode.

如果在部署管理器移植完之后不会有新的版本6的节点加入到单元中，那么可以让整个单元运行在兼容性模式下。

youdao

No question migrating birds are answering a command of nature, but now the bad news: There is growing evidence that the wiring is off; the system is breaking down.

毫无疑问，迁徙的候鸟听从着大自然的召唤，但现在的坏消息是，有越来越多的证据表明，“硬线”正在断开，远古逻辑系统正在崩溃。

youdao

Because work permits are rarely issued to the unskilled, such people generally have no legal way of migrating to find work.

ECONOMIST: Who gets in

The U.S. is the top destination for the world's migrating Christians and Buddhists, as well as those with no particular religious affiliation, including atheists and agnostics, a new study shows.

WSJ: U.S. Top Destination for Christian, Buddhist Immigrants, Study Says