上海人口比中国其他城市的人口要多。

误：The population of Shanghai is larger than that of any city in China.

正：The population of Shanghai is larger than that of any other city in China.

析：从逻辑上说，Shanghai在China范围内，或者说Shanghai也是China范围内的一个城市，若不用other，则句意为“上海的人口比中国任何城市的人口都多”，

4. 比较级和最高级的常见修饰语

比较级的修饰语：常见的有far, even, still, a lot, lots, a great deal, a bit, rather, three times, any, no, very much 等。如：

Japanese is much [far] more difficult than English. 日语比英语难多了。

She felt a great deal more comfortable now. 她现在感觉舒服多了。

He works hard, but she works still harder [harder still]. 他工作很努力，但她工作更努力。