veer off

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释义
出岔子
to diverge or deviate suddenly from some established plan, idea, topic, or purpose

例句
Rosalyn: Okay, you look a little nervous. Now you are not gonna veer off this script. (True Blood)
罗莎琳：好了，你看起来有点紧张，发言的时候可别给我出岔子。（真爱如血）