Shanghai is larger than other city in China（以及any city in Li

"any other city " means "every city",so,you can conclude it by yoursllf ,whether an "s" is needed or not .
再问： 能说的具体一点吗？最好能举个例子
再答： 先清楚，any 后面名词可以加复数，如Is there any books in the bag，但是，any other 后面的名词不能加复数，如，Are there any other problems。。。 这就是它们的区别