Undertread
n. 底胎面(指轮胎的加固层)
🗣️ 情景例句
Right now my hands are full.
现在我忙得不可开交。
He was lucky to have a good home in which to grow up.
他幸运地生长在良好的家庭里。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？