spend, take, pay, cost的区别
（1）spend的主语通常是人，往往用于句型(sb.) spend some money/some time on sth. / (in) doing sth.如：文章源自玩技e族-https://www.playezu.com/67648.html
He spent three days on the work. = He spent three days (in) doing the work.文章源自玩技e族-https://www.playezu.com/67648.html
（2）take常用于“占用、花费”时间，其主语通常为形式主语“it”或物。句式是：It takes / took sb. some time to do sth = Sth. take(s) / took sb. some time. 如：文章源自玩技e族-https://www.playezu.com/67648.html
It took me three years to draw the beautiful horses.文章源自玩技e族-https://www.playezu.com/67648.html
The work took me two days.文章源自玩技e族-https://www.playezu.com/67648.html
（3）pay为“付款、赔偿”之意，主语通常是人，往往是sb. pay some money for sth.或pay sb. (some money for sth)。如：文章源自玩技e族-https://www.playezu.com/67648.html
He has paid the doctor 50 pounds for the medicine.文章源自玩技e族-https://www.playezu.com/67648.html
How much did you pay him?文章源自玩技e族-https://www.playezu.com/67648.html
（4）cost的主语必须是某物。句型是sth. cost (sb.) some money。如：文章源自玩技e族-https://www.playezu.com/67648.html
The dictionary cost me 20.文章源自玩技e族-https://www.playezu.com/67648.html