Polyampholyte
聚两性电解质
🗣️ 情景例句
That idea would never work in practice.
那种设想永远实现不了。
It's about time.
时间差不多了。
Mrs.Richards realized that it must be the man from the Electricity Board who had come to read the metre.
理查兹夫人这才想到一定是供电局来人查电表了。