Salisbury sent him on a diplomatic mission to North America.索尔兹伯里派他到北美执行一项外交任务。He was sent on a misbegotten diplomatic mission that was sure to fail.他被派去执行一项计划不周、注定会失败的外交任务。He was ostensibly on holiday, but actually he was on a diplomatic mission.他表面上是去度假，而实际上是去执行外交使命。