Wisdom tooth
智齿
📖 牛津释义
wisdom tooth
any of the four molars at the back of the mouth that appear when one is about 20 years old 智牙.
🧩 词语组成解析
tooth
[tu:θ]
n. 牙;齿;齿状部份;
vt. 给…装齿;
vi. 啮合;
🗣️ 情景例句
His studies haven't been inproving lately.
他的学业最近没什么进步。
It's a poor heart that never rejoices.
不知人间有乐趣者最可怜。
To get a full appreciation of what this means we must turn first to some recent human inventions.
要透彻理解这句话的意义，我们应先回顾一下人类最近的几项发明。