【答案】应助回帖

9楼: Originally posted by 龙猫yu at 2017-08-22 22:09:43
我刚才想了一下，那个that好像是带指前面的整句话，应该是there is swimming as well as that.（指的是和健身一样受欢迎），然后把as well as that 前置了，不知道这么解释能不能行
...