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
What can I do to cheer her up?
我要怎么做才可以让她振作起来？
Pardon me. Are you Ralph Meyers from National Fixtures?
对不起，请问你是从国家装置公司来的雷夫·梅耶史先生吗？
There they collected women as well as food and drink, and a life of ease had made them soft.
他们不仅搜刮吃的喝的，而且抢掠妇女，安逸的生活已使丹麦军队变得软弱无力。