Disulphide
n. 二硫化物
🗣️ 情景例句
But Alexandra and I
但Alexandra和我
Excuse me, would you give me a hand?
对不起，你能帮我个忙吗？
Oh, a lot of different things! One machine helps them to put rice in bags.
能做好多不同的事情呢！比如能帮助农民把大米装袋等。