Methasam
[商]二甲基二硫化氨基甲酸锌(橡胶硫化促进剂)
🗣️ 情景例句
How many courses are you taking this semester?
这学期你选了多少课？
Poverty is not a disgrace,but theft is a disgrace.
贫穷不可耻，偷窃乃足羞。
Is that all?
只能这样吗？