英语表达 “out of sight, out of mind” 相对应的汉语表达是 “眼不见，心不念”，意思就是 “因为看不见，听不见，所以也就不去想了”。

例句

Since Roy started working at home, I’ve forgotten he’s my colleague – I guess it’s out of sight, out of mind.
自从罗伊开始在家工作后，我差点都忘了他是我的同事。这可能就是眼不见，心不念吧。

I never use my bike since I stored it in the garage – it’s out of sight, out of mind.
自从我把自行车放进车库里以后，我就再也没骑过了。眼不见，心不念。

We have so many bills to pay that I’ve put them in a drawer – out of sight, out of mind.
我们有特别多的账单要付，我把它们放在抽屉里了，眼不见，心不烦。