Methasam
[商]二甲基二硫化氨基甲酸锌(橡胶硫化促进剂)
🗣️ 情景例句
I have to postpone our appointment.
我要把我们的约会延期。
How much is the postage for this?
这个邮费要多少钱？
Today is Thursday, September 10th, Teachers' Day.
今天是9月10日，星期四，教师节。