Polysilicone
有机硅聚合物
🗣️ 情景例句
Tony is a man of weak will.
托尼是个意志薄弱的人。
He that is master must serve.
主人必须会服务。
Every day he does the same thing. Why doesn't he use the lift for the last three floors?
每天他都这样度过。为什么上最后3层楼他不用电梯呢？