You cannot make an omelet without breaking eggs.
cannot make an omelet without breaking eggs直译过来就是：“不打碎鸡蛋就做不了煎蛋卷”，这个短语的正确意思是：“天下没有白吃的午餐，付出才有收获”。因此，当美国人说"You cannot make an omeletwithout breaking eggs."时，他/她要表达的意思就是:"You must work hard if you want tosuccess."、"No pains, no gains."。
Lenna: I failed to get promoted again.
Todd: Honey, you've never tried your best! You cannot make an omelet without breaking eggs.
①I failed to get the project because I thought there was no competitor.
②I was forced to leave because I got no achievements this year.
③Who can tell me why all my workmates are promoted but me?
④The boss has refused to promote me for the reason that I often ask for leave.
1. omelet n. 煎蛋卷，炒鸡蛋
Er...... I'll have the heart-healthy omelet with goat cheese and peppers, please.
The omelet making was meant to show how a robot could be "taught" to accomplish complextasks.
2. ask for leave 请假
He went to the office to ask for leave.
I have to ask for leave for the next week because of some issues to handle, please approve.