what's this 这是什么东西

what's this 这是什么东西 这是什么 what's this 我不知道这个东西是什么时,我用What's this?判断题 这是什么东西?What's that?这是什么树 what's this?中的what是什么词性? Some of them have two legs.Some have three legs.But they can't walk.What's this?这是什么东西? what's this in english的是什么句型what's this in English what's this? what s this回答 whats this what's this是什么意思 What's this? 翻译 what’s this? this's what i what's this? what's this What’s.this.( )Chinese what's this?