strong stronger strongest区别

strong意思是“强壮的”，形容词。

stronger是strong的比较级形式。

strongest是strong的最高级形式。例如：He is strong.(他长的壮。)

        His brother is stronger than he.(他哥哥长的比他还壮。)

        His eldest brother is the strongest of them.(他的大哥哥是他们中最壮实的。)