益鸟;
It is of course very useful for a migrating bird to be able to switch to a magnetic compass when clouds cover the sun; otherwise it would just have to land and wait for the sun to come out again.
具有这种磁场罗盘,对候鸟来说当然非常有用,因为如果乌云遮日,它可以以磁场为向导继续飞行,否则它就只好着陆,等待太阳重新出现。
The owl is a useful bird.
猫头鹰是一种益鸟.
简答网 · 初中英语作文
简答网 · 双语娱乐资讯
简答网 · 中考英语
简答网 · 高考英语