Three

1、versatile conference

2.prefer infer fertile transfer（转移）transform

3.reject eject inject project动词投掷名词工程 object名词物品目标动词反对oppose

objection异议 objective 名词目标形容词客观公正的 impersonal impartial

subject名词形容词

Many parents are unwilling to subject their children to the unhappiness of divorce

subjective 主观的

4.unicommunication telecommunication

5.television telephone telegraph telegram telescope microscope

6.scope graph biology biography autobiography biotech

7.vision visual visible invisible visual effect

supervise supervision supervisor