Copolyalkenamer
共聚烯烃
🗣️ 情景例句
And miles to go before I sleep.
在我就寝前还得赶许多哩路。
He who hesitates is lost.
举棋不定，坐失良机。
Jack is the strongest boy in the class.
杰克是全班最强壮的男孩。