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1·His research is for the betterment of mankind.

他的研究是为了人类生活的改善。《柯林斯英汉双解大词典》

2·He is a practical humanist, who believes in the dignity of mankind.

他是个真正的人道主义者，信奉人类的尊严。《柯林斯英汉双解大词典》

3·Truly, this is the way of mankind.

的确，这是人类的方式。

4·If that never happened, there would be no mankind.

如果那没有发生，就不会有人类。

5·Asia is one of the places where mankind originated.

亚洲是人类的发源地之一。《新英汉大辞典》

6·It was extremely important to the destiny of mankind.

它对人类的命运极为重要。

7·Nature can only let us exist, while arts create mankind.

自然只能让我们存在，而艺术创造人类。

8·One of writer's favourite themes is the fraternity of mankind.

作家最喜欢写的一个主题是人类的博爱。《新英汉大辞典》

9·Some scientists say that it was the key to the success of mankind.

一些科学家说这是人类成功的关键。

10·I do hope you'll go ahead in the view of the potential benefit to mankind.

我真希望你能抱着对人类有潜在好处的观点继续前进。

人类

1·His research is for the betterment of mankind.

他的研究是为了人类生活的改善。《柯林斯英汉双解大词典》

2·He is a practical humanist, who believes in the dignity of mankind.

他是个真正的人道主义者，信奉人类的尊严。《柯林斯英汉双解大词典》

3·Truly, this is the way of mankind.

的确，这是人类的方式。

4·If that never happened, there would be no mankind.

如果那没有发生，就不会有人类。

5·Asia is one of the places where mankind originated.

亚洲是人类的发源地之一。《新英汉大辞典》