Scopometry
视测浊度测定法
🗣️ 情景例句
I was expecting him here at five forty-five.
我们约好了五点四十五在这里会面的。
What now?
现在要怎样？
We should learn the value of money and learn how many hours' work has to be done before we can buy something.
我们应该认识到钱的价值，知道要干多少小时的活，我们才能买某件物品。