1. 我是个足球迷。

[ wǒ shì gè zú qiú mí 。 ]

I am a football fan.

2. 我看见他在操场上踢足球。

[ wǒ kàn jiàn tā zài cāo chǎng shàng tī zú qiú 。 ]

I saw him playing football on the playground.

3. 在足球中以手触球就是犯规。

[ zài zú qiú zhōng yǐ shǒu chù qiú jiù shì fàn guī 。 ]

It's against the rules to handle the ball in soccer.