Hierarchical operating system

hierarchical [ˌhaiə'rɑ:kikl;'haiə'rɑ:kikəl]

adj. 按等级划分的，等级（制度）的;分层的;

operating [['ɔpəreitiŋ]]

a. 操作的, 工作的, 营业上的, 业务的, 关于收支的, 关于损益的, 外科手术的\\n[机] 运转费用

system ['sɪstəm]

n. 体系，系统;制度;身体;方法;

sy(syn-=together)+ste(to stand)→系统；体系；秩序；制度；方法

OK. Let's choose the deal at 300 dollars per set CIF New York.

好吧。让我们以纽约到岸价格每台300元成交。

Money is the root of evil.

金钱是罪恶的根源。

You were very kind. You brought out all your jewellery and you told me I could take anything I wanted. There were so many beautiful things that it was hard to choose. And then I saw a lovely diamond necklace with a big blue stone in the centre.

你太好了。当时你把所有的珠宝首饰全都拿了出来，而且说，我要什么就可以拿什么。漂亮的首饰太多了，实在难挑选。后来我终于看中了一条美丽的钻石项链，中间还嵌着一颗大蓝宝石。