Spectrum selectivity characteristic

spectrum ['spɛktrəm]

n. 光谱;波谱;范围;系列;

spect=look看+rum表名词 → 能看到的 → 范围，幅度

selectivity

n. 选择性, 选择度\\n[化] 选择性

characteristic [,kærəktə'rɪstɪk]

adj. 特有的;独特的;表示特性的;显示…的特征的; n. 特性，特征，特色，[数]（对数的）首数;独特性;性质;

character性格，品质+istic表形容词 →表示特性的

What dorm do you live in?

你住在那个宿舍？

How much does it cost to rent a mid-size car?

租一辆中型汽车要多少钱？

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。