Polyether ketone ketone (pekk)
[化] 聚醚酮酮
🧩 词语组成解析
n. [化]聚醚,多醚
ketone
['ki:toʊn]
n. 酮;
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
Don't worry.
别担心。
I know what you mean.
我懂你的意思。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？