经典语句
I was not born yesterday. 我又不是小孩，别骗我了。

喷倒老美
Bill让朋友陪他去买车，销售人员很热情，但是车子的实际情况与所介绍的相差甚远。销售人员介绍一辆白色车时说“这是一辆九成新的车。”朋友不屑地说了句：“I was not born yesterday.”Bill心里暗暗发笑：你当然不是昨天出生的。

想聊就聊
Salesgirl: You can take this car into consideration. It works well and its price is reasonable.
销售员：你可以考虑下这辆车。这辆车的性能优越而且价格合理。

Todd: I was not born yesterday.
托德：我又不是小孩，别骗我了。

知识点津
I was not born yesterday.的字面意思是“我又不是昨天才出生的。”引申义为“自己不需要对方叮嘱也懂”。如果有人忽悠你去做某件事，但是你早就看穿了其中的陷阱，就可以用此句话。