Cascade-tray fractionation column

cascade [kæ'sked]

n. 倾泻;小瀑布，瀑布状物;串联; vi. 流注;大量落下;

casc下落+ade东西，状态 →小瀑布

tray [tre]

n. 盘子;托盘;浅盘;满盘;

fractionation

n. 分别, 分馏法\\n[化] 分级; 分馏; 分凝

column ['kɑləm]

n. 纵队，列;圆柱;专栏;

I feel sorry for the beggars, but I can't stand it when they teach their children how to beg.

我很同情乞丐，但我真的看不惯他们教孩子怎么样行乞。

It smells good.

闻起来味道不错。

The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri

他们保存历史的唯一办法是将历史当作传说讲述，由讲述人一代接一代地将史实描述为传奇故事口传下来。