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- In the case of migrating birds, arrival at the summer breeding site may require precise timing of departure from wintering grounds. 以候鸟为例，从渡冬地出发的时间必须准确，才能在适当时间抵达夏季繁殖地。
- time of migration birds 候鸟移动期
- The Yellow Mountains lie on an important route of migrating birds. 黄山是候鸟迁徒途中重要的一站。
- This is the time of the year when migrating birds take wing. 这是一年中候鸟起飞迁居的时候了。
- The story of migrating birds,is the story of a promise,the promise to return. 鸟类迁徙，是个关于承诺的故事，归来的承诺。
- A lot has been found out about the journeys of migrating birds by marking the birds with aluminium rings put on one leg. 通过在鸟的一只腿上套一铝环作标记，人们已经发现了很多鸟的迁移过程。
- This year, however, I got my first singing Pale-legged Leaf Warbler in Chi Gu on 1st April, so separation by timing of migration seems pretty useless. 今年四月一号，我在七股记录到我第一只鸣唱的淡脚柳莺，所以想用经过台湾的时间来分别这两种似乎没什麽用。
- It was a time of great tribulation. 那是一段充满苦难的时期。
- World Migratory Bird Day (WMBD) is a global initiative devoted to celebrating the beauty of migrating birds and for promoting their conservation worldwide. 世界候鸟日（WMBD）是一个全球投入庆祝候鸟之美以及为了加强它们在世界范围内保育的倡议（计划）。
- Have you made sure of the time of the train? 火车开车时间你搞清楚了吗？
- It's so changeable at this time of year. 这段时间天气变化无常。
- I'll make sure of the time of the flight. 我要核实一下这班飞机的时间。
- She stopped by just to pass the time of day. 她来串门只是为了打发时间。
- He will never fall away even in time of danger. 他即使在危急时刻也绝不会放弃原则。
- Water is short at this time of year. 每年这个时候缺水。
- Patterns of migration will certainly change. 迁移模式必将改变。
- April is a time of transition for the birds. 四月是鸟儿换班的时节。
- A new pattern of migration has quietly emerged. 一种新型移民格局已悄然形成。
- He played the man in the time of great trouble. 他在极为困难的时候显示出男子汉的气概。
- the marvellous directional sense of migrating birds 候鸟非凡的方向辨别力
