flyway

Fifty million birds , from cranes to song birds , journey along the Flyway twice a year .

从鹤类到鸣禽的5千万只鸟儿一年两次沿着迁徙路线奔波。

Nigeria is one of several African countries located on the Black Sea-Mediterranean flyway used by migratory birds .

尼日利亚是几个地处候鸟使用的黑海&地中海飞行路线的非洲国家之一。

Stopover sites along the flyway are vital for shorebirds to refuel and finish their migration to the breeding ground .

中途停歇地对于鸻鹬类补充能量以顺利完成迁徙并在繁殖地成功繁殖至关重要。

Yet the physical changes that go with affluence destroy the habitats of migratory shorebirds and seabirds , wreaking havoc on their numbers along the crucial East Asian-Australasian flyway .

然而经济发展带来的环境恶化破坏了migratoryshorebirdsandseabirds的生存环境，在东亚-澳洲的主要迁徙路线上，这些鸟类数量锐减。这句话没有并列关系。

BBC News - Despite being closed to most foreigner visitors , North Korea may ironically be the saviour of one of the world 's greatest international migration routes - the avian East Asian Australasian Flyway .

BBC新闻–尽管朝鲜对大多数外国游客闭关锁国，但颇有讽刺意味的是，它或许成了东亚–大洋洲这条世界最重要的国际候鸟迁徙路线的救星。