如题所述
第1个回答 2015-05-11
because ....originally there is nothing
第2个回答 2015-05-11
Because there is nothing at all本回答被提问者采纳
第3个回答 2015-05-11
because it doesn't matter originally
第4个回答 2015-05-11
金山词霸值得拥有
