4、Look at public sign,it means you shouldn’t keep off the grass.改错

问题描述:

4、Look at public sign,it means you shouldn’t keep off the grass.改错

Look at public sign,it means you shouldn’t keep off the grass.
句子表达的意思应该是:看那个公共标志,意思是说不可以践踏草坪.
keep off 是“远离”的意思,所以shouldn't要改为should