———a certain doubt among the people as to.空格能不能用it has
问题描述:
———a certain doubt among the people as to.空格能不能用it has
答
There is ,there exists什么意思。。具体点。。谢谢there is是there be 句型,等于 it hasthere exists是 这里存在,等于 it has 谢谢~