Polypropene
n. 聚丙烯
🗣️ 情景例句
Hail to the conquering heroes,
向进取的英雄们致敬，
A fool attempting to be witty is an object of profoundest pity.
蠢人装聪明，实在最可怜。
an illness which at twelve would knock us over,
使我们在12岁时病倒的疾病，