Echosounding
音响测深法
🗣️ 情景例句
It's good to see you so happy.
能看见你如此高兴 ，太好了。
Such a small mistake is pardonable.
不会追究犯了那么小的错误的。
I stopped and he asked me for a lift.
我把车停下，他向我提出要求搭车。