斯克鲁奇是狄更斯小说中的主人公，他是个出了名的守财奴。所以后来人们就称吝啬的人为scrooge，或者也可以说 tightwad miser。

What a miser!
真是个吝啬鬼！
Miser
吝啬鬼
Miserly
吝啬的
Miserable
悲惨的，痛苦的

你应该节省开支：
You have to control your spending.
你应该少花点儿。
You have to cut back on expense.
你应该节省开支。
You have to cut the frills.
你应该减少不必要的支出。

有关住院的语句：
想说住院，可以用in the hospital或者hospitalized（in a hospital).

One of my friends have been in the hospital for 5 weeks.
我有个朋友住院五周了。
Have you been in the hospital recently?
你最近去医院了吗？
My husband was hospitalized yesterday because of bronchitis.
我丈夫犯了支气管炎，昨天住院了。
He died from avian flu after being hospitalized for 2 days.
他入院两天后死于禽流感。