Then during the late fall and winter as the clock "ticks", certain physiological changes occur in the bird.

在之后的深秋和冬天，如同钟的转动一样，特定的生理变化在鸟类的身体上表现出来。

youdao

'Most of The Times, you'll find [a singing bird] in a snuff box or bulky clock, where the blocky form is dictated by the function,' says Mr. Bacs.

巴克斯说，“在大多数时候，你会发现鼻烟壶或者大型钟表里安装有鸟鸣装置，它们方块状的外形是由功能决定的。”

youdao

The bird in the clock gaily hops out and says cuckoo.

钟里的小鸟愉快地跳出来，“布谷布谷”地叫着。

youdao