结束了工具匠的学徒期以后，他当上了经理。用英语怎么说？

结束了工具匠的学徒期以后，他当上了经理。

After serving his apprenticeship as a toolmaker, he became a manager.

after

prep. …后的，（表示时间）在…以后，（表示位置、顺序）在…后面；conj. 在…以后；adv. 以后，继后；adj. 后来的，以后的；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

serving

n. 服务，（食物或饮料的）一份，上菜；adj. 用于上菜的；v. （为…）服务( serve的现在分词)，任（职），提供，端上；

例句
...the serving of alcoholic drinks.
供应含酒精的饮料

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。

apprenticeship

n. 学徒制，学徒期；

例句
After serving his apprenticeship as a toolmaker, he became a manager.
结束了工具匠的学徒期以后，他当上了经理。

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

toolmaker

n. 精密工具制造者；

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

became

v. 变为，成为（ become的过去式 ）；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

manager

n. 处理者，经理，管理人，干事，理事，〈美〉（政党等的）领袖，策士，干才，干练的人；

例句
Any manager knows that his company will start falling apart if his attention wanders...
每个经理都知道只要自己的注意力有所分散，公司就会分崩离析。