Rhepanol
合成异丁烯橡胶
🗣️ 情景例句
Success amply rewarded his efforts.
成功使他的努力得到应有的回报。
It is convenient to know the language.
掌握这门语言会带来方便。
He has to take care of his sick mother.
他得照顾他生病的母亲。