Polydialkysiloxane
聚二烷基硅氧烷
🗣️ 情景例句
Which part of the paper do you read first?
你会先看报纸的哪一部分？
Though malice may darken truth, it cannot put it out.
恶意可以遮暗真理，但不能抹杀真理。
Here's a pen.
这里有笔。