Please don't step on the grass.

请不要在草地上的一步。

We mustn't pick the flowers or step on the grass in public.

我们不能摘花、或是步入公共草坪中。

We mustn't pick the flowers or step on the grass in public.

我们不能选择在公共草地上的花朵或步骤。

We mustn't pick the flowers or step on the grass in public.

我们不能摘花在公共场合或在草地上一步。

Though some signs are warning people not to step on the grass, there are still some playing.

尽管有一些警示牌提醒人们不要进入草地，但是仍然有人在上面随意玩耍。

We shouldn't leave rubbish everywhere and spit in public places, we mustn't pick the flowers or step on the grass in public, we mustn't throw the garbage into the river and so on.

我们不应该把垃圾到处吐痰在公共场所，我们不能摘花或步骤在草地上在公开场合，我们不应该把垃圾扔进河里，等等。

Walks don't step on a grass, the environment changes happily!

走路不踩一棵草，环境变得更美好！

So I angrily walked over, the little girl cried out, angry and said: "you should take good care of the grass, should not to step on it, back to the earth mother a 'clean' white face! ""

于是，我愤怒地走过去，把小女孩叫出来，生气地对她说： “你应该爱护小草，不应该去踩它，还给大地妈妈一张‘洁白干净’的脸吧！”