来自姜国超的问题
【这是个什么从句Thereisnodenyingthefactthatairpollutionisanextremelyseriousproblem:thecityauthoritiesshouldtakestrongmeasurestodealwithit.哪段☞那段】
这是个什么从句
Thereisnodenyingthefactthatairpollutionisanextremelyseriousproblem:thecityauthoritiesshouldtakestrongmeasurestodealwithit.
哪段☞那段
