Dimethylpolysiloxane
二甲聚硅氧烷
🗣️ 情景例句
And miles to go before I sleep,
在我就寝前还得赶许多哩路
Pardon me.
请原谅。
It seems she was in class on Friday afternoon, but no one has seen her since.
好象她星期五还在教室，但从那以后没人看见过她。