Polypak
苯乙烯、二乙烯苯共聚物
🗣️ 情景例句
Are you good at taking photos?
你拍照拍得好吗？
Therefore, having a basic knowledge of business.
因此，懂得一些商务和贸易的英语术语。
He has been able to tell us more about active volcanoes than any man alive.
他能告诉我们的有关活火山的情况比任何在世的人都要多。