来自李榕的问题
there加不及物动词用法有何要求如:whether_ornotontheMarsisstillorotherplanetsisstillasecret.AthereexistslifeBthelifeexistsCitexistslifeDlifeisexisted
there加不及物动词用法有何要求
如:whether_ornotontheMarsisstillorotherplanetsisstillasecret.
AthereexistslifeBthelifeexistsCitexistslifeDlifeisexisted

