Permafrost
n. [地]永久冻结带
📖 牛津释义
permafrost
n[U]
subsoil that is permanently frozen, eg in polar regions 永冻土, 永冻层（如在极地的）.
🗣️ 情景例句
No. If we buy a house, I want to be able to handle it alone.
不， 如果我们买房子， 我希望能够自行负责。
Oh, Mr. Student.
哦，老兄，你是学生吧。
Chaplin was born in London in 1889 and first acted when he was five years old.
卓别林1889年出生于伦敦，5岁时就开始演戏。