You monkey around with something when you do not know what you are doing.

VOA: special.2011.03.13

When you ask for the investment rate, you want to know the truth-- how much am I really getting so they don't monkey around here.

当你问投资收益率时,你要知道,我到底能赚多少,所以他们不再偷懒

耶鲁公开课 - 金融市场课程节选

When you ask for the investment rate, you want to know the truth-- how much am I really getting so they don't monkey around here.

当你问投资收益率时,你要知道,我到底能赚多少,所以他们不再偷懒

耶鲁公开课 - 金融市场课程节选