born yesterday

基本解释

I wasn’t born yesterday. I know they’re not that expensive.
我们中国人常用我又不是三岁小孩来表示自己并不傻或不懂事，而美国人更夸张，他们说我又不是昨天生的。
Certainly people who were only born yesterday know very little.
自然喽，某些昨天才诞生的人肯定什么都不懂啦。
Come on, tell me the secret. I wasn’t born yesterday.
快嘛,把秘密告诉我,我已经不是小孩子了。

Yet Russians were not born yesterday: opinion polls show that most believe the government knows all that there is to be known about the disaster, but has no intention of making it public.
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In sum, it appears Googleopoly has grown so accustomed to being able to dictate to everyone which information they should accept as most relevant, that they have scant self-awareness when their message does not pass the laugh test with a principled audience that was not born yesterday.
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Yesterday, Austrian-born winemaker Rudi Bauer of the esteemed winery Quartz Reef drove me up into the hills overlooking Lake Dunstan, which cuts a large swath through the middle of the massive eastern section of Central Otago.
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