总结一下spend的用法.

spend Vtvi
(1)用(钱), 花费
spend money on books
花钱买书
spend all one's energies
竭尽全力
(2)消耗, 用尽, 浪费
They went on firing until all their ammunition was spent
他们不断射击, 直到耗尽所有的弹药。
spend one's blood and life for the cause of communism
献身于共产主义事业
(3)消磨(时光), 度过
spend …on sth(in doing sth)
spend a lot of care on sth [in doing sth]
在某事上[做某事时]费很多心血
He doesn't spend much time on his homework
他花在作业上的时间不多。
How do you spend your leisure
你是怎样消磨空闲时间的
spend
vi花费, 浪费
(被)耗尽, 用尽
He is always spending
他挥霍成性。
Don't spend without the thought of the next day
花钱不要只顾眼前不想明天

我现在查了才知道spend还有这么多意思
不过用的多的就是 形容人花什么什么东西，然后后面跟doing 或on doing
大体就这样了
spend的主语必须是人

在给你补充几个吧，比较重要哦，
take
[teIk]
vt, vi
took [tu:k], taken [teIkEn], taking [teIkIN]
得到；获得
You have to take it as you find it
对这个你只得将就些算了。
拿；握住；抓住
The mother took her child by the hand
母亲拉着孩子的手。
取走，拿走
Take this shopping home
把这件买的东西拿回家。
The foods here are all free - take any you like
这里的食品都是免费的,你们随便吃吧。
He'd take a candy from a baby(美)(非正式)
他是个贪得无厌的下流坯。
Who has taken my chocolate
谁拿了我的巧克力？
容纳；装
Its wide roads, which can take fourteen lanes of traffic, have been kept away from living areas
它的宽阔马路有14条车道,而且远离生活区。
These village cottages take in paying guests during the summer holidays
暑假期间这些农家村舍接待付费的旅客。
The suitcase wouldn't take another thing
这个衣箱再装不下别的东西了。

cost
n
成本；费用
cost price
成本价格
The cost of living is going up
生活费用在提高。
代价；价格
The cost of the house was too high for me
对于我来说，这房子的价格太高了。
牺牲
He saved his daughter at the cost of his life
他以牺牲自己的生命挽救了女儿。

paid, paying
付（款）；支付；缴纳
He paid ￡5 for the book
他买这本书花了五英镑。
"I'd like to pay by cheque, please"
我想用支票支付。
I paid $150 for that walki-lookie
我花了一百五十美元买了那台轻便电视摄影机。
"The international corporation paid $50,000 for the firm, and $2,000 for its goodwill"
"这家跨国公司用五万美元买下了这家商号,两千美元买下了它的信誉。"
付清（账单、债务）
Can you lend me some money - I can pay you back tomorrow
你能借给我点儿钱吗？我明天就可以还给你。
Have I paid you back the $20 you lent me
你借给我的二十美元我还给你了吗
Have you paid the electricity bill for the last month yet
你缴了上个月的电费了吗
生利；有…收益；值得（麻烦）；合算
It pays me to keep that stock
持有那种股票对我有利。
It will pay to read a dictionary if you have time
"如果你有时间,翻翻词典是值得的。"
It will pay in the long run if the setting off of firecrackers is effectively banned in the cities
"从长远来看,在城市里真正有效地禁放鞭炮,是值得的。"
做；致；说
pay a visit
访问
pay a call
拜会
pay a compliment
致意
pay one's respects
致敬
The workers paid homage to the king when he came to the factory for a visit
"当国王来到工厂参观时,工人们向他致敬。"
给；与
pay attention
注意
遭受惩罚
She has paid the penalty for her theft
她犯的偷窃罪已受到惩罚。
He paid dearly for his careless slip
他为自己粗心的失误付出了巨大的代价。