Bopp
abbr. 双轴向聚丙烯（Biaxially-oriented Polypropylene）
🗣️ 情景例句
Nice to meet you.
幸会。
He that is full of himself is very empty.
自满的人是很空虚的。
Somebody is always complaining to others.
有人总是向别人抱怨。