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
No, I could never agree to sign this contract.
不，我无论如何也不会签这份合同。
I need it badly.
我急着要。
If they can each be trusted to take such responsibilities.
如果企业的每个人都信得过，人人都认真负责，