45. In short , we must work diligently to make the world a better place for coming generations . We must not persist in pursuits harmful to the environment . 简而言之,我们必须勤奋工作,为了下一代把世界变成更美好的地方。我们不应该坚持对环境有 ...
Passage Fourteen(Antarctica and Environment) Antarctica has actually become a kind of space station – a unique observation post for detecting important changes in the world’s environment. Remote from major sources of pollution and the complex geo ...
346. fall to the ground(计划希望等)失败,落空 347. on one's guard(against)谨防,警惕;(be)on guard站岗 348. guard against(=defend,keep safe)警惕,防止guard…against警卫…防止 &n ...
21. On no account can we ignore the value of knowledge. 我们绝对不能忽视知识的价值。 22. It is time the authorities concerned took proper steps to solve the traffic problems. 该是有关当局采取适当的措施来解决交通问题的时候了。 & ...
11. There is no doubt that our educational system leaves something to be desired. 毫无疑问,我们的教育制度令人不满意。 12. An advantage of using the solar energy is that it won‘t create any pollution. ...