Polyolefin
n. [化]聚烯烃
🗣️ 情景例句
Oh! Oh, quickly! Go, go, go!
噢， 噢， 赶快 ！走 ，走，走！
She will certainly remain single.
她肯定会保持独身。
Education, with its cycles of instruction so carefully worked out,
教育，以其教学周期如此精心地安排，