Catechu
n. 儿茶\\n[医] 儿茶
🗣️ 情景例句
We cannot leave this problem unattended.
这一问题我们不能置之不理。
This kind of article is often bought as a gift, so exquisite and tasteful design is of prime importance.
人们购买这种商品通常用来赠亲友，所以精美高雅的设计至关重要。
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？