佳句参考：
1. If the claims of the other side prove true , we may be forced to alter our position .
如果对方的主张被证明是正确的，我们可能被迫要改变我们的立场。
2. The urgent need for nuclear nonprolifeation is undeniable . Moreover , failure to halt the spread of weapons of mass destruction increases the chance for nuclear holocaust .
防止核扩散的紧迫性是不可否认的。此外，制止大规模杀伤性武器扩散的失败增加了核毁灭的可能性。
3. Having recognized the problem , it follows that we must develop a plan of action .
意识到了问题，接下去我们必须制定行动计划。
4. Governments have reached a consensus on the need for peace and it follows that actions speak louder than words .
政府一致同意和平的必要性，接下去就是行动胜于语言了。
5. The convincing proof that smoking causes cancer has failed to convince hundreds of millions of people to abandon the vile habit .
抽烟致癌的有力证据没能说服数百万人改掉这一恶习。