英语翻译是“What does this sing mean?”为什么不是“What is this sing mean?”

英语翻译是“What does this sing mean?”为什么不是“What is this sing mean?” 英语翻译What does this passage tell us？ what does this mean? What does this what does Daming do with this bag英语翻译 英语翻译可以翻译成这三句吗?语法有错吗?：“What is the meaning of this word?”：“What does this word mean?”：“What does this word mean by?” What does this mean?翻译 what does this sign mean? What does this code imply? What does this idiom mean? What does this idiom mean? 英语翻译What does this thing that people cannot escape consist of these days? what does this mean?还是what is this mean? what does this word mean?急 智力What does this mean IM2BZ2CU what does this picture describe?怎么回答? what does this sign mean 的意思 what does this mean啥意思