Polydialkysiloxane
聚二烷基硅氧烷
🗣️ 情景例句
You give me the money and I'll give you the goods.
你付钱，我给货。
To be virtuous is to do good.
行善是美德。
Sally is leaving tomorrow and coming back on Saturday.
傻俐明天走，星期六回来。