Underdamp
不完全衰减[减震]
🗣️ 情景例句
Now, tell us something about your trip.
好，跟我们说说你的旅行。
He has spent over six years working in Africa and India.
在非洲和印度工作了六年。
It was stolen twenty years ago when Dan was a boy of fifteen!
这是20年前丹还是一个15岁的孩子时被人偷走的！