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
Of course not, Richard.
当然不会有 Richard。
I can come any day except Thursday.
我除了星期四任何一天都能来。
Most of the earth's surface is covered by water.
大部分的地球表面被水覆盖着。