Navimeter
纱线卷装硬度测定计
🗣️ 情景例句
We need a new coffee-table book,
我们需要一本可以摆在客厅的书，
He has a pound of beef.
他有一磅牛肉。
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-