Latherometer
泡沫仪
🗣️ 情景例句
He's a very famous person in Chinatown. He's also from your home city, Peking.
他在唐人街大名鼎鼎，他也是从你的家乡北京来的。
What is wealth good for,If it brings melancholy?
财富如带忧郁来，有了财富有何用？
What was the population of the less developed countries in 1950?
1950年不太发达国家的人口是多少？