Metcolising
铸铁喷铝法
🗣️ 情景例句
I'm quite active and energetic.
我积极而充满活力。
Some of them are mine.
一部分是我的。
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。