Prior to his retirement, Mr. A was a brown bagger for years.是什么意思？

Prior to his retirement, Mr. A was a brown bagger for years.

在退休前, A先生多年来是自带午餐.

prior

adj. 优先的，占先的，在…之前；n. 小修道院院长，大修道院的副院长，（隐修院）会长，[史]行政长官，普赖尔；adv. 在前，居先；

例句
The caves can be visited only by prior arrangement...
这些洞穴只接受预约参观。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

retirement

n. 退休，退职，引退，隐居，退隐处；

例句
There will be more work to do, not less. Bang goes the fantasy of retirement at 35.
工作只会增加，不会减少。梦想着35岁退休是彻底没戏了。

Mr

abbr. Mister 先生，Master 少爷，Mother 母亲，molecular radius 分子半径；

例句
According to police accounts, Mr and Mrs Hunt were found dead on the floor of their kitchen.
据警方称，亨特夫妇被发现死在家里厨房的地板上。

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

brown

adj. 棕色的，褐色的，被晒黑的，未去壳的；n. 褐色，棕色；v. 变成棕色，成褐色，晒黑，烤得焦黄；

例句
He had a thin aquiline nose and deep-set brown eyes.
他长着窄长的鹰钩鼻和深陷的褐色眼睛。

bagger

n. 装袋工，垒打，封袋机，杓斗，掘沟机；

例句
Prior to his retirement, Mr. A was a brown bagger for years.
在退休前, A先生多年来是自带午餐.

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

例句
I've come looking for a bit of advice.
我特来讨教。

years

n. 年( year的名词复数 )，年纪，一年的期间，某年级的学生；

例句
His wife was sentenced to seven years imprisonment for aiding and abetting him...
他的妻子作为他的从犯被判入狱7年。