我知道what does this mean.但what means is this?对吗?

我知道what does this mean.但what means is this?对吗? what does this mean?还是what is this mean? what does this mean? （ ）What（ ）this sign（ A.do；means B.does;mean C.does;means D.d what is this mean? What does this sentence mean? What does this mean?翻译 What does this poem mean? What does this idiom mean? what does this sign mean? What does this word mean? what does "workday" means?这句话对吗,mean还是means?