The phrase "on top of..." can mean "in addition to..."

You don't want to miss out on the opportunity of a lifetime. usually: sb misses out on sth. 错过 http://www.nciku.com/search/zh/detail/%E9%94%99%E8%BF%87/6733?toolbar=1 Suffice it to say that he wasn't amused. 'Suffice it to say that' is either used like 简单的说 (simply speaking) or as an understatement or as a summary instead of a long explanation. There were people everywhere, pushing, crowding, waiting; suffice it to say that it was crowded. No I can't go out tonight, I have a paper due tomorrow, I have a test tomorrow, I'm sick, and on top of that I only got 3 hours of sleep last night. 'On top of' means in addition to everything else, also this... Maybe like 除了。。。还有。。。 It was more than we bargained for. or This isn't what we bargained for. You can use 'bargained for' in the literal sense of 讨价还价 or in the metaphorical/situational sense of you thought you were getting one thing or into one situation but instead you got another that you didn't really want/expect. You need to have broad appeal to win the presidency. sth has 'broad appeal' means that something can be appealing or suitable to many different types of people.