life member

基本解释

Meadow originally lost her legs to frostbite, but she was given a new lease on life by a 15-member team of faculty and students from Colorado State University's veterinary hospital.
美登高原来因为冻伤失去了两条腿，但是一个十五人的团队给予了她新生，这个团队由科罗拉多州立大学兽医医院的员工和学生们组成。
Lightman is inspired by real-life lie detector, APS Charter Member and Fellow Paul Ekman, who has spent 50 years researching and characterizing facial expressions and body movements.
Lightman博士这个任务的创造灵感来自现实生活中的谎言侦查员，美国心理科学协会的特别会员Ekman，他花了50年的时间研究面部表情和身体动作语言。
Someone like Peter, who is trying to break a lifelong control habit, might choose to delegate a task that isn't life-or-death to the most capable member of his staff and see what happens.
像Peter这样要破除长期控制习惯的人可以去选择将一个非生死攸关的任务将它委派给有能力的员工看看会发生什么。
bbs.chinadaily.com.cn

As a life-long member of this field, that caught my eye.
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If you are a life member of a club or organization, you have paid or been chosen to be a member for the rest of your life.