1. rookie 新手 新队员 their first year of being on the team . rookie mistake 基本错误：就像一个没有经验的人会犯的错误 to teasing yourself or someone else about mistake . you can be rookie at something as a Pro, in some area you have little experience so you make a beginner's mistake. eg, What a rookie mistake! 犯了低级错误 It's was a rookie mistake to leave passport at home when traveling abroad. That was a rookie mistake not turn on microphone . She make a rookie mistake today, but it's ok she's brand-new at her job, she will learn. 2. a blunder 犯大错 hot mic, you were speaking and didn't realized the microphone was on . 通常用于描述在不知情的情况下，麦克风仍然开启并捕捉到不应该被听到的谈话 The politician didn't realized there was a hot mic and accidentally revealed his true thoughts. 3. a slip-up, 一个疏忽,出纰漏 a mistake in self-control 自己能把控的失误 eg, The players are all very keen to show this was just a slip-up . 4. silly me 我真傻 eg Silly me, what was I thinking? I was sharing a Coke when I should have been sharing my thanks in a printed internal document to the employee's manager. hey, you are suppose to make ... on the milk. OMG rookie mistake. ( you have been working for a while, and hit the wrong bottom or pick the wrong bottle.) it's ok, i have made many slip-ups in my day . ( try to make you feel better, in my day means in my ten years of working in that coffee shop) well, where's the ... milk anyway ? oh Silly me, it's on the frige on the back . sorry about that.

Rookie Mistakes = You have a little experience in some area, so make beginner mistakes. Tips: 1. used bigger mistakes you yourself made in a teasing way, but bot used for someone's mistakes they made. 2. specific for baseball not for football. 3. also for an expert who made an mistake Rookie= beginner, someone who's new. 4. for talking about ourselves too, not just to point person that you've made a mistake. repercussion= consequences. 5. I've should known that, but I made a mistake. Some other ways of saying that kind of silly mistake 1. blunder(a big embarrassing mistake) 2. slip-up(a little minor than blunder, making a mistake that u can control) Role Play A: Lydsay, you'r supposed to make this with oat milk. B: Oh, my gosh, rookie mistake. A: I've made many slip-ups in my day. B: Well, where is the ota milk anyway? A: Silly me! It's in the fridge in the back. Sorry about that.