用比较级表示最高级

He is the tallest in his class
意思上等于
He is taller than any other students in his class.

这样

The question which you asked is more difficult than any other one on Baidu.Whats more,the usage and construction are best difficult which is known.

she is the tallest of the two。
of表比较。她是两个中最高的。

用比较级说比其他所有的都好,意思不就是最高级了.

sth is better than anything else