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. Please endorse the check at the back.
不会的。请在支票的背面签名。
Where do you have your lunch?
你在哪儿吃午饭？
Fish and chips has always been a favourite dish in Britain,
油煎鱼加炸土豆片一直是英国人喜爱的一道菜，