Is this a teacher'sdesk?的中文是这是讲台吗?但那this旁边的a是什么意思?

ts thrs a teacher'sdesk?yes,it is. This is a bear 的中文意思 this is not a valid address 的中文意思 IS THIS A CARROT OR AN ONIO的中文是什么 This man is a legend 的中文意思? This is a good order of the city中文是什么意思 This week is more like a dream中文是什么意思? This is a little something for you中文是什么意思呢 Is this a teacher?是神马意思 this. is. a. House. 是什么意思? this is a standard是什么意思 用适当的词填空 ：this is tom____mother is a teacher.