Polyphenylene
聚亚苯基
🗣️ 情景例句
Let's what?
你说什么？
Make the best of a bad business (or job or bargain).
身处山穷水尽，力争柳暗花明。
He made up his mind to once again ask for her hand in marriage.
他下决心再一次向他求婚。