Naphthaometer
(石油产品)闪点测定仪
🗣️ 情景例句
Now the hard work begins.
艰苦的工作现在开始了。
Let's go to the station to get a train into town.
我们到火车站去乘车进城。
I promise. Let me go home now. I am not well.
我答应。现在让我回家吧。我不舒服。