我国冬季两项运动科研体系不完善；

The system of scientific research of China's Biathlon imperfect ;

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羽毛球和网球这两项运动，你喜欢哪一项？

Which do you prefer, badminton or tennis?

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我有两项最喜欢的运动，一个是足球，另一个是篮球。

I have two favourite sports. One is football, the other is basketball.

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这两项都是我喜欢的体育运动。

They both are my favorite sports.

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严冬时节参加北欧两项滑雪运动。

Nordic skiing in winter's brutal cold.

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他在一次运动会中打破了两项全国纪录。

He broke two national records on a sports meeting.

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他在一次运动会中打破了两项全国纪录。

He broke two national records on a sports meeting.

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