The mayor was praised for his effective leadership during the crisis.

leadership 是由动词 lead（领导）加上后缀 -ship 构成的名词。lead 表示"带领、引导"，后缀 -ship 表示"状态、性质、技能"。leadership 合起来指"领导能力、领导地位"，特指在组织或团队中引导他人的行为和决策的能力。