Pek
[化] 聚醚酮
??? 情景例句
What about the house in Mount Kisco?
在Mount Kisco的房子呢
Hey, you forgot about me! Don't leave me here!
喂，你把我給忘記了！別把我對丟在這里！
What was the population of the world in 1950?
1950年世界人口是多少？