1. produce=develop=manufacture生产 v.
2. central=middle中心的 adj.
3. did not have=without没有 v.
4. bring=confer=award=present=grant=confer=allocate=offer带来 v.
5. time limit=deadline时间限制，期限 n.
6. increase=go up/rise=grow=climb=gain=escalate=expand=pick up=widen=intensify=build up增加
7. assistant=helper=coach 助手 n.
8. immense=big=major=considerable=great=huge/enormous=tremendous=large scale/large-scale巨大的 adj.
9. illustrate=show=be a sign=demonstrate=mean=make clear=reflect=tell=be evidence=reveal 表明，显示 v.
10. quotation=a phrase or sentence that is well-known or often used 引用语 n.
11. predecessor=someone who had your job before you started doing it 前辈，前任n.
12. rival=a person, group, or organization that you compete with in sport, business, a fight etc=competitor 对手，竞争者 n.
13. distraction=something that stops you paying attention to what you are doing分心的事物 n.
14. fault=defect=problem=trouble=flaw=weakness =bug=virus=be something wrong with 错误，缺点
15. cornerstone=basis=foundation=the key 基石n.