this does demostrate the theory 怎么翻译

this does demostrate the theory 怎么翻译 Where does this stand? what does this mean? What does this __________ does this happen? What does this mean?翻译 what does this sign mean? How does this new designation How much does this notebook______ How does this word spell? What does this code imply? What does this idiom mean? Hello,does this clock work? What does this idiom mean? This file does not exist . what does this word mean为什么用does how much is does this belt?为什么要用does he often does this可不可以用he often does it