Tom acted as my stand-in while I was abroad.是什么意思？

Tom acted as my stand-in while I was abroad.

我出国期间由汤姆代职。

Tom

n. 雄动物，雄猫；

例句
She heard Tom exchanging good-natured banter with Jane.
她听见汤姆和简互相打趣。

acted

link-v. 表演；v. 行动( act的过去式和过去分词 )，做，表演，起作用；

例句
Freed acted with his accustomed shrewdness.
弗里德以他一贯的精明风范行动起来。

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。

my

adj. 我的(I的所有格形式)；int. 啊呀，天啊；

例句
Racial discrimination is abhorrent to my council and our staff...
我的顾问班子和全体工作人员都对种族歧视深恶痛绝。

while

conj. 在…期间，与…同时，虽然，

例句
A Dr Matthew Owens was reported missing while on an expedition to north-eastern Turkey.
据报道，一位叫马修·欧文斯的博士在前往土耳其东北部考察的途中失踪了。

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。

abroad

adv. 到国外，在海外，广为流传地；adj. 往国外的；n. 海外，异国；

例句
I would love to go abroad this year, perhaps to the South of France.
我今年很想出国，可能是去法国南部。