| 31. | liberate mankind |
| 解放人类
|
| 32. | mankind evolve(s) [progress(es)] |
| 人类进化[进步]
|
| 33. | work for the good of all mankind |
| 为全人类的利益工作
|
| 34. | a deadly menace to mankind |
| 对人类的致命威胁
|
| 35. | labor for the happiness of mankind |
| 为人类的幸福而努力工作
|
| 36. | have the good of mankind closely at heart |
| 深切关心人类的幸福
|
| 37. | apply the principles of science for the good of mankind |
| 运用科学原理造福人类
|
| 38. | be curious about the origin of mankind |
| 对人类的起源感到好奇
|
| 39. | dedicate one's life to the emancipation of all mankind |
| 献身于全人类的解放事业
|
| 40. | dig into the history of mankind |
| 苦心研究人类的历史
|