Kentanium
硬质合金
🗣️ 情景例句
Cheese--c-h-e-e-s-e.
Cheese c-h-e-e-s-e。
I have a toothache.
我牙好痛。
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？