Polyether ether ketone ketone (peekk)
[化] 聚醚醚酮酮
🧩 词语组成解析
n. [化]聚醚,多醚
ether
['i:θə]
n. <化>醚;the ether 苍穹;苍天;太空;
ketone
['ki:toʊn]
n. 酮;
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
Sheet--s-h-e-e-t.
Sheet s-h-e-e-t。
Please don't make a smell in the house with your cigar.
请不要在屋子里散布雪茄的气味吧。
What happened before printing was invented?
印刷术发明以前是怎么一回事？