I'm Sally, an exchange student from the UK. I (be) in China for eight months. Every time I want to lie on the grass, "keep off the grass" signs make me nervous.
In the UK, it's in fields of wild grass or in well-kept national parks, people make good use of the green grass. If it's a (sun) day, people will sit on a bed of grass and relax in the sun. This gives you the chance to listen to nature. Maybe it's a bird singing to another, or the soft wind brings you cool air.
Also, in most colleges, grass fields act a soft study desk for students to read books and learn. Or it can (use) to just taļk, laugh and play on.
Besides, families enjoy spending (they) weekends on the grass in parks. There, families can set up a picnic and (child) can play games with each other.
However, there is a rule to enjoy the green grass. In some parks, there are different grasslands for people (relax) and play sports on. If people want to relax, they'd better choose the right field, or they may feel the full power of flying soccer ball!
