Poly(ethylene oxide)
[化] 聚环氧乙烷
🗣️ 情景例句
who really needs to be wearing a tuxedo,
真正需要穿燕尾服的人，
His name is John Smith.
他叫约翰、史密斯。
It's black. It's a black car.
是黑色的，一辆黑色的车。