鸟语啁啾

whistling buoys───汽笛浮标

whistling for───吹哨召唤

mistletoe birds───槲寄生鸟

whistling buoy───鸣笛浮标

whistling swans───啸声天鹅

whistling in the dark───乱猜；假装知道

indigo birds───靛蓝鸟

For a moment, I thought of playing truant. The air was so warm, and I could hear the black birds whistling at the edge of the woods.───一会儿，我想到逃学。空气是那么温暖，我能听到山雀在树林边欢唱。

I could hear birds whistling at the edge of the woods and the Prussians drilling in the meadow behind the sawmill.───我可以听到鸟儿在树林边的叫声和普鲁士士兵在踞木厂后边草地上操练的声音。

In the bottoms of impenetrable blackthorn, each evening and morning now, out flickers a whistling of birds.───在不能进入的荆棘丛底，每一个夜晚以及每一个早晨，都会闪动出鸟儿的啼鸣。