Vibros
铁氧体磁致伸缩振子
🗣️ 情景例句
Good. Then you'll be here about five?
很好。那么 大约在五点左右来。
After graduation, Mr. Jones immediately became a member of the United Nations Relief and Rehabilitation Administration.
毕业后琼斯先生就加入了联合国救济善后总署。
You've done very well and made lots of progress.
你功课学得很好，进步很大。