1. I just changed my personal settings in my account. How long does it take for them to take effect?2. Your essay is full of mistakes. Please revise it and re-submit it for review.3. I like the contract, but I would like to modify it to include a new clause.4. This video tutorial will show you how to alter pants to a smaller size.
 revise modify change alterrevise 有修正的意思，modify 只指修改，可為了任何理由修改。alter 常用在更改衣物的尺寸，如例句。change 最普遍，指更改，可用在任何情況，任何事物。
All the wor I've been putting into this project has been all for nothing because my boss is shutting it down.