Being a hospital Sister had its uses.是什么意思？

Being a hospital Sister had its uses.

在医院当护士有它的好处。

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

hospital

n. 医院，收容所，养老院，〈古〉旅客招待所；

例句
30 per cent of psychiatric hospital beds are occupied by people of no fixed abode.
精神病院30%的床位是被无家可归者占据的。

sister

n. 姐妹，（称志同道合者）姐妹，修女，护士；adj. 姐妹般的，同类型的；v. 如姐妹般相待；

例句
My sister still claims she cheated on us at cards, but I know better.
我妹妹仍然说她和我们玩牌的时候捣了鬼，其实我心知肚明。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

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

its

pron. (it的所有格形式)它的，厥；

例句
The government is to accelerate its privatisation programme.
政府将加快其私有化计划的进程。

uses

n. 用途( use的名词复数 )，使用能力，运用头脑（或身体）的能力；v. 使用( use的第三人称单数 )，（施展手段）利用（别人），耗费，吸（毒）；

例句
She uses her vocal training to record audio tapes of books for blind people.
她利用接受的声乐训练给盲人录制磁带图书。