1.    electric current: a flow of electricity 电流

It was rather like an exhibition of prehistoric electronic equipment.

electric/electronic 电子的

2.    rarely 很少的：not often

Modern sculpture does not often surprise us any more.

3.    seldom(almost never)

Modern sculpture seldom (almost never) surprise us any more.

4.    be mistaken 错误的

I thought I saw you just now,but maybe I was mistaken.

mistaken idea,belief,impression

5.    take (no,an) interest in

Babies soon begin to take an interest in the world around them.

6.    cannot have failed to notice: certainly notice

7.    on display: 公共场合展示

8.    strange: oddly peculiar

9.    exhibit 展品   exhibition:n.

exhibit: n.        v.put sth on display

10.    be suspended from

They support the cables from which the bridge has been suspended.

11.    in response to: as a reaction of

12.    a gust of wind        a gust of anger,excitement,laughter

13.    line up against

14.    sphere        The earth is not a perfect sphere.

15.    attracted,repelled

She is attracted to him but repelled by his mother.

16.    flicker 一闪即逝        flash

continuously 连续不停地    on and off 时而

17.    emitted 发出（light,heat,gas,sound,smell etc.）

The chimney emitted clouds of smoke.

18.    shock: v.        n.electric shock