what does the sign mean.

what does the sign mean. what does the sign mean咋回答 What does the sign mean in English? what does this sign mean? What does that sign mean? what does this sign mean on the wall?为什么on the wall在前面,而mean What does this sign mean?Where ca What does this sign mean?Where What does that sign mean课件 问：Look at the sign.What does it mean?答：It_“_”.问：What does th 先看看,句型； what does the sign mean?it mean…… does,it,kepp,what,off,grass,this,the,the,sign,mean,means(?.)