1. official=formal=authorized=on record官方的，正式的 adj.
2. athletic=physically strong and good at sport=fit=be in shape=be in good condition运动的 adj.
3. intensive=involving a lot of activity, effort, or careful attention in a short period of time=rapid=crash course密集的，加强的 adj.
4. burst=a short sudden effort or increase in activity=burst of anger/enthusiasm/temper etc 爆炸，突发
5. recognize=know=identify=pick out=tell认出，承认v.
6. inadequate=not enough=too little=few=scarce=insufficient=be in short supply=lack of something=be short 不足的 adj.
7. develop=come from=be based on=originate=go back to=have its origins in=have its roots in=derive from=be derived from=be founded on=grow out of=develop from=evolve from发展，生长 v.
8. enable=make something possible=allow=permit=pave the way for=clear the way for使能够 v.
9. predict=anticipate=forecast=foretell=prediction=projected=guess in advance预测 v.
10. specialist=someone who knows a lot about a particular subject, or is very skilled at it=expert专家 n.
11. theoretical=relating to the study of ideas, especially scientific ideas, rather than with practical uses of the ideas or practical experience理论的 adj.