Polydialkysiloxane
聚二烷基硅氧烷
🗣️ 情景例句
Philip, why don't you go
Philip 你何不去
Silence is sometimes the severest criticism.
沈默有时是最严厉的批评。
How can we set up an account with you?
如何才能跟你们设立记帐户头呢？