改变某事，尤其是日常安排或风格，以增加变化
用不同于平常的方式做事
共 3 个含义,从最常见到最少见,按 CEFR 等级色彩标注。
为了增加变化或尝试新东西而改变日常安排、习惯或做法
"I've been eating the same breakfast for months — it's time to switch it up."
We wanted to switch up the sound a little bit and try something different.
— Billie Joe Armstrong (Green Day), interview with Rolling Stone, 2012
用一件东西替换另一件东西
"The coach decided to switch up the starting lineup before the championship game."
（俚语，非裔美国人英语）背叛某人，或突然改变立场
"Everyone was shocked when he switched up on his best friend like that."
在美式英语中很常见，尤其用于日常口语和社交媒体。常用于反身形式或不带宾语：‘Let's switch it up.’ 常见于体育、健身、音乐和生活方式语境。
母语者最常搭配使用的单词。
最常用的五种时态形式。
来自 YouTube 真实视频中 "switch up" 的用法片段 — 点击可在 Looplines 上观看。
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