Micronephelometer
微量散射浊度计
🗣️ 情景例句
Prices are always negotiable.
价钱总是可以商量的。
It's time for class.
上课时间到了。
and whom I respect, confess at once that they have little idea where they are going when they first set pen to paper.
和尊敬的作家，都立即承认在他们动笔时，不清楚要写什么，怎么写。