Macroconcentration
常量浓度
🗣️ 情景例句
Can I buy travelers checks here?
这儿能买旅行支票吗？
When the owl sings,the nightingale will hold her peace.
枭鸟唱歌，夜莺屏息。
carrying with him in his pocket what remained of a bottle of medicine formerly prescribed for an indisposition of Mrs.Carlyle's.
衣袋里装上了一瓶他妻子不舒服时吃剩下的药。