keep off the grass英 [ ki:p ɔf ðə ɡrɑ:s ] 美 [ kip ɔf ði ɡrɑs ]v.不践踏草地,小心双语例句1.He told the boys playing football to keep off the grass.他告诉那些踢足球的孩子们不要践踏草坪.2.Keep off the grass, please!请勿践踏草坪!3.The policeman told the boys to keep off the grass.警察告诉男孩子勿踩草地