2. Nothing is more important than perseverance in achieving success.
3. I don’t imagine anything we cannot do so long as we persist.
4. There is no denying that our economy is developing by leaps and bounds.
5. It is universally acknowledged that what he has done was a mistake.
6. It is conceivable (可想而知的) / obvious (明显的) / apparent / that there will be a new economic crisis throughout the world, but we hope it won’t happen.".
7. It goes without saying （不言而喻）that we have to work hard if we want to learn a foreign language well.
8. Science to the human mind is what air or water is to the body
9. Crisis is to us what illness is to our body.
10. A life without a friend is a life without a sun. 人生没有朋友，犹如人生没有太阳
11. General Lee is everything General Grant is not.
12. Great changes have taken place since our country entered WTO.
13. On no account can we lie.
14. Under no circumstances should we reveal our secret.
15. There is no one but longs to communicate with others
16. So precious is time that we can’t afford to waste it.
17. It is high time we did something to change the situation.
18. The situation will worsen unless some steps are taken to stop it.
19. The reasons why I am the most partial to blue are threefold.
20. We should spare no effort to make a success of our career.
21. It pays to take part in social works in order to know the outside world better.
22. Listening to music enables us to feel relaxed.
23. We should bring home to people the value of working hard.
24. Taking exercise is closely related to health.
25. The condition of our traffic leaves much to be desired.
26. …change the course of history…
…turn over a new leaf…
…shape the destiny of a nation…
…shape the world…
…break a new ground…
27. Smoking has a great influence on our health.
28. Pollution poses a great threat to our existence.
29. We shall do our utmost to change and reverse the current situation.
30. Time is more than money.