Others say it's only natural that newcomers learn the language of their host nation.

另一些人说，新来的人学习东道国的语言是很正常的。

Others say it's only natural that newcomers learn the language of their host nation, seeing it as a condition to ensure they can contribute to society.

另一些人说，新移民学习东道国的语言是很自然的，他们把这看作是确保自己能为社会做出贡献的一个条件。

The host nation always performs well.

东道主总是表现良好。

It isn't easy to be a host nation for the Olympics.

作为奥林匹克运动会的主办国是不容易的。

It is not easy to be a host nation for the Olympics.

作为奥林匹克运动会的主办国是不容易的。