Undersoil
n. 底土, 下层土
🗣️ 情景例句
Didn't you feel terrible?
没有感到可怕吗？
Desperate diseases must have desperate cures.
毒病要用毒药医。
In fact, I have just bought a book entitled How to Read a Thousand Words a Minute.
事实上，我刚买来一本叫《一分钟读一千字的诀窍》的书。