万能句子：

　　1. Yet little has been done to solve this problem worldwide.

　　2. To make one final point, …3. As we are all aware …4. … has long been an issue debated mainly in … around the world.

　　5. One example is that …6. Conversely7. The final point that I would like to make is that …8. Likewise, it is no longer required that … nor is it …9. at all costs10.What is important to remember is that …11.preservation and protection12.In this increasingly global world, …同义词的使用：

　　解决：solve, resolve, deal with, cope with, handle, tackle消除：get rid of, eradicate, eliminate依赖：rely on, depend on, count on十分：very much, immensely, hugely, largely, greatly, enormously, tremendously损害：damage, hurt, injure, harm, impair给予：give, offer, render, impart, provide发展：develop, cultivate, foster优势：advantage, merit, virtue, benefit, upside, strength缺陷：disadvantage, detect, demerit, drawback, downside, weakness