1.They laboured for the happiness of mankind.

1.他们为幸福而努力工。

2.Mankind is warned to stop spoiling the environment.

2.受到警告不能再污染环境。

3.When will the desert give up its secrets to mankind?

3.沙漠何时才会向显露它秘密呢?

4.I cannot bear your diseased view of mankind.

4.我无法忍受你对病态看法。

5.These habits are both universal among mankind and peculiar to individuals.

5.这些习惯在全中很普遍, 而对个来说又很独特。

6.To the accompaniment of the commonalty of mankind development，people requirement knowledge was gaining.

6.随着社会发展，对知识需求也不断地增长。

7.Mankind has always struggled forward no matter what difficulty lies in its way.

7.不管道路上有什么困难, 总是要奋勇前进。

8.Disease is an enemy of mankind.

8.疾病是敌。

9.Famine and war still afflict mankind.

9.饥饿和战争仍使遭受痛苦。

10.Mankind exists on food.

10.靠食物生活。

11.Language is peculiar to mankind.

11.语言是特有。

12.Language is proper to mankind.

12.语言是所特有。

13.Columbus' accomplishment, once accepted, enabled mankind to use the existing skills of seacraft for vastly greater undertakings.

13.哥伦布业绩一旦被接受，就使能利用现有航海技术从事更伟大事业。

14.Diabetes mellitus (DM),as the global disease,jeopardizes mankind healthy.and its complication is the consideration Mutilation and mortiferous cause.

14.糖尿病是目前严重危害世界性疾病,而糖尿病并发症是糖尿病致残、致死重要原因。

15.The space that residential building narrowed the mankind lives, make resist safety of chill, sponsorial body had reliable safeguard.

15.住宅建筑缩小了生活空间，使抵御风寒、保证身安全有了可靠保障。

16.After the millenary of tentative idea, mankind can roam wantonly in infinite universe , is that to be so secret, so magical!

16.设想千年以后可以在无限宇宙中任意遨游，那是多么奥妙，多么神奇！

17.Along with plentifulness of the physical life and advancement of the civilization in mankind, looking for experience consumption would become a commercial hotspot.

17.随着物质生活丰富和精神文明进步，寻求体验消费必将成为下一个商业热点。

18.The happiniess of mankind will be realized when men and women coordinate and advance equally,for each is the complement and the helpmeet of the other.

18.幸福只有在男性和女性和谐共处，并肩前进时才能实现，因为男女两性互为补充，互为良伴。”