He was seen as Mr Olsen's heir apparent.是什么意思？

He was seen as Mr Olsen's heir apparent.

他被视为奥尔森先生理所当然的继任者。

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。

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。

seen

v. 看见( see的过去分词 )，观看，领会，考虑；

例句
Holiday spots have seen a dramatic revival and tourist chiefs are competing for a slice of the action.
各个度假点重又呈现出一派兴旺景象，旅游业的龙头老大们都在争着分一杯羹。

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。

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。

heir

n. 继承人，后嗣，嗣子；

例句
It's only the second time a potential heir to the throne has married a commoner.
一位可能的王位继承人与平民缔结婚约，这种事还只是第二次。

apparent

adj. 易看见的，可看见的，显然的，明明白白的，貌似的，表面的，显见；

例句
I was a bit depressed by our apparent lack of progress...
我对我们看似缓慢的进展感到有些沮丧。