1) If somebody ever became convinced of the importance of something, we would probably find ways to solve the problems of , problems that now seem impossible to overcome.如果某人确信某事的重要性，我们或许会找到解决 问题的办法 这些现在看来还无法解决的问题。
2) Since there are so many advantages of , it is not difficult to understand why 既然 有这么多的好处，也就不难理解为什么3) , and the result will be worth the effort. 其结果是很值得的。
4) Following these suggestions may not guarantee the success for , but the effort might cause some reward. It will benefit 按这些建议做也不能保证 的成功，但努力可能会有回报。
5) No easy solution is at hand to the problem of but 目前，对 问题还没有现成的较容易的解决办法。
7) We may have a long way to go before we reach the final goal. But once we are on the way, the chance to reach it is greater. 在最终到达目的之前我们还有很长的路要走。但是我们一旦上路，到达的可能就会大增。
