tail

/teɪl/

the posterior part of the body of a vertebrate especially when elongated and extending beyond the trunk or main part of the body

中文释义：尾巴；尾部

The dog wagged its tail happily when I came home.

我回家时狗高兴地摇着尾巴。

The comet's tail stretched across the night sky.

彗星的尾巴横跨夜空。