Poly(ether-ketone)
[化] 聚醚酮
🗣️ 情景例句
You want to bet?
想打赌吗？
Sorry to bother you, but do you have change for a one?
对不起，麻烦你，你有1元钱的零钱吗？
He was rather elderly with grey hair and clear blue eyes.
他上了年纪，有着灰白的头发和明亮的蓝眼睛。