Desanding
去砂, 除砂
🗣️ 情景例句
A little knowledge is dangerous.
一知半解最危险。
Every man thinks his own geese swans.
每个人都以为自己的东西了不起。
The other model's more expensive, but it's worth the money.
那种型号价格是贵一些，但它值得那么多钱。