Tannometer
鞣液比重计
🗣️ 情景例句
Thanks, Mr. Bennett.
谢谢 ，Bennett先生。
You've got to do something.
你一定要想办法。
The shape and dimensions of the skyscrapers depend entirely on the necessity of obtaining the maximum income per square foot of ground,
每平方英尺地皮取得最大收入