Coalbed
煤层
🗣️ 情景例句
Turn the key before you pump the pedal, or you'll flood the engine.
加水之前转动钥匙，要不发动机就给浇灭了。
Proverbs are the cream of a nation's thought.
谚语是一国的思想精华。
For most of them, fifty pence is a small price to pay for a nice big bar of chocolate.
对大部分孩子来说，用50便士来买一大块好的巧克力，是算不了什么的。