Many caged birds live longer than their fellows in the wild.
许多笼中鸟比野外同类鸟的寿命长。
To test the idea, caged night-migrating birds were placed on the floor of a planetarium during their migratory period.
为了验证这个想法,这些在夜晚迁徙的候鸟被关进笼子里,并且在它们的迁徙期间被放置在一个天文馆的地面上。
Early in his research, Kramer found that caged migratory birds became very restless at about the time they would normally have begun migration in the wild.
在克雷默早期的研究中,他发现被关在笼中的候鸟在它们通常开始在迁徙的大致时间会变得非常不安。
Caged birds or farm animals may be subject to the same viruses as those that exist in the wild.
关在笼里的鸟类或农场动物,可能和野外动物一样易受同类病毒的感染。
However, as the old man said: Some birds arent meant to be caged, but most birds will choose to stand it.
然而,正如老人说:有些鸟儿是永远关不住的,不但是大多数鸟类会选择忍受。
However, as the old man said: Some birds arent meant to be caged, but most birds will choose to stand it.
然而,正如老人说:有些鸟儿是永远关不住的,不但是大多数鸟类会选择忍受。
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