Compound trommel
[建] 多层转筒筛
🧩 词语组成解析
n. 滚筒筛\\n[机] 圆筒筛
🗣️ 情景例句
Is something wrong, Alexandra?
怎么了Alexandra？
The shoes are worn-out.
这鞋已经不能穿了。
We should learn the value of money and learn how many hours' work has to be done before we can buy something.
我们应该认识到钱的价值，知道要干多少小时的活，我们才能买某件物品。