to get sth the wrong way round or to get sth the wrong way around (place or order wrongly)将某物摆错位置；把某物前后弄反
I think you've got the cap the wrong way round.我觉得你把帽子前后戴反了。
(misunderstand or confuse)误会…；混淆…
Hearing their arguments, I'm sure they've got things the wrong way around.听了他们的争论, 我确信他们把事情弄混了。