Hondrometer
粒度计, 微粒特性测定计
🗣️ 情景例句
Good idea.
好主意。
How much is the postage for this?
这个邮费要多少钱？
The one with the money got such a fright that he dropped the bag.
拿钱的那个小偷吓得把提包都扔了。