beak的复数形式怎么写？

beak的音标：beak的英式发音音标为：[bi:k]beak的美式发音音标为：[bik]...

The gull held the fish in its beak.海鸥嘴里叼着鱼。the bird's horny beak鸟的角质喙The bird had a worm in its beak.鸟儿嘴里叼着一条虫....

n.（猛禽等的）嘴，喙，鹰钩鼻，地方执法官...

Later, the beak, claws and keel become very soft and pliable.此后, 喙 、 爪和胸骨变得很软和易弯曲.A pigeon probably has his Huff Duff in that incrustation above his beak.鸽子也有它的无线电高频测向仪,也许就是它喙上部的那个硬包吧.The gull held the fish in its beak.海...