He has spent most of his life being shunted between his mother, father and various foster families...是什么意思？

He has spent most of his life being shunted between his mother, father and various foster families...

他一生中的大部分时间都在他母亲、父亲及各种各样的寄养家庭之间辗转度过。

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。

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；

例句
...the operation a patient has had.
病人做过的手术

spent

adj. 用过的，不再有用的，已废的，失效的；v. 用钱，花钱( spend的过去式和过去分词 )，花费，消耗，花（时间）；

例句
He has spent money with gay abandon...
他肆意挥霍钱财。

most

adv. 最，最多（大），much的最高级，非常，很，几乎；adj. many的最高级，最多的，最大的，大概的，大多数的，大部分的；n. 最大限度，大部分，大多数人；

例句
As long as most people are happy to have the monarchy, the abolitionist position is an arrogant fantasy.
只要大多数人还乐意保留君主制，废除它的主张就是痴人说梦。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

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。

life

n. 生活，生计，生命，性命，一生，寿命，人生，尘世；

例句
In his later life he became even more absent-minded.
他晚年变得愈加健忘了。

being

n. 存在，生物，人，要素，本质；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

shunted

adj. 分路的；v. 把（铁路货车等）调到另一轨道上，使转轨( shunt的过去式和过去分词 )；

例句
He has spent most of his life being shunted between his mother, father and various foster families...
他一生中的大部分时间都在他母亲、父亲及各种各样的寄养家庭之间辗转度过。

between

prep. 在…之间，私下，暗中，在…中任择其一，来往于…之间；adv. 当中，中间；

例句
How big is the abyss between what you think you are and what you actually are?
你对自己的认识和真实的你之间差别到底有多大？

mother

n. 母亲，妈妈，女修道院院长，大娘；vt. 像母亲般地照顾，养育，溺爱；

例句
I felt I had adjusted to the idea of being a mother very well...
我感到自己已经完全接受了当妈妈的想法。

father

n. 父亲，祖先，（尤指天主教和东正教的）神父，天父；vt. 成为父亲，创立（新思想），创造，发明（新方法）；

例句
Janet had been abused by her father since she was eleven.
珍妮特从11岁起就遭受父亲虐待。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

various

adj. 各种各样的，多方面的，许多的，各个的，个别的；

例句
Prices start at £1,095 per person, including flights, hotel accommodation and various excursions...
起价为单人1,095英镑，包括机票、旅店住宿和各种出游费用。

foster

v. 培养，抚育，促进，代养；adj. 寄养的，代养的；

例句
After due consideration it was decided to send him away to live with foster parents...
充分考虑之后决定将他送到养父母那儿生活。

families

n. 家( family的名词复数 )，家族，（大）家庭（包括父母子女及近亲），语族；

例句
We have been working very hard, and our families have also worked hard...
我们一直很努力工作，并且我们的家人也是如此。