Macroconcentration
常量浓度
🗣️ 情景例句
She was still beautiful at the age of forty.
她活到四十岁仍然很美。
Who is that over there?
那边那个人是谁？
This is last order we will be placing for a while.
这是最后一次下订单，我们暂时不再订货了。