Quadrosilan
二苯硅烷
🗣️ 情景例句
But I think you two can have a good time together without me.
但我觉得， 我不去你们也会玩得很开心。
One good mother is worth a hundred schoolmasters.
一个好的母亲顶得上一百个教师。
Yes, and full payment is due within 30 days.
是的，如果在30天骨付款就没有折扣。