I would have laughed in different circumstances.

换了是别的场合，她这么说我会笑得不可开交。

youdao

To be honest I would have laughed if someone had said I'd be here for 12 years.

老实说，如果有人说我已经在这里有12年了，我会笑的。

youdao

If someone had told me last May that I would be substituting this year, I would have laughed.

要是去年五月份有人告诉我说我会做代课老师，我会一笑代之。

youdao

If you would have told me then that golf would out-rate tennis, I would have laughed at you.

CNN: John McEnroe: 'Attila the Hun' of tennis

If you had told me five years ago that I would launch an e-commerce company, I would have laughed at the idea I never expected to own a business.

FORBES: Jessica Alba on Becoming an Entrepreneur

If I had told any of the coaches or players that I was going to trade their jumbo jet for a jumbo ice cream sundae, they would have laughed in my face.

FORBES: Improvisation -- a Different Way of Solving Business Problems Yields Big Rewards