Underclay
n. (煤层下的)底黏土层
🗣️ 情景例句
my friend Virginia Martinelli is a real-estate agent.
我的朋友Virginia Martinelli就是个房地产仲介。
An evil chance seldom comes alone.
祸不单行。
Don't be uneasy about the consequence.
不必为后果忧虑不安。