Derivometer
测偏仪
🗣️ 情景例句
In town. At the hardware store.
在镇上。在五金行里。
We tried in vain to make him change his mind.
我们试图使他改变他的主意，但白费力气。
No, I think it'll be all right for him to go to school.
不，我想他去上学没什么关系。