| 例句 |
During the breeding season the birds come ashore.在繁殖季节各种鸟都飞到岸边。Britain's rarest breeding birds are under threat from fanatical and selfish egg collectors.英国最珍贵的种鸟正因为那些狂热而自私的鸟蛋收集者而面临着威胁。Each species of bird has its own characteristic song.每种鸟都有自己独特的鸣叫声。The river was alive with birds.因为有各种鸟，这条河显得生气勃勃。 |