Everyone muffs them once in a while.

所有人都会偶尔犯错的好嘛。

Or did ya muff'em once in a while?

还是有时候也会含糊其辞？

Not just something you feel every once in a while.

而不仅仅是偶尔闪现一下。

Once in a while he used to think.

他偶尔会思考。

Take a day off every once in a while.

每隔一段时间休息一天。

You should only have it once in a while.

你应该只是偶尔吃点。

That's a nice one, every once in a while.

这个回答很好，每隔一段时间。

He came over to see me once in a while.

他不时来看我。

Or a piece of pie every once in a while?

还是想偶尔能来那么一块馅饼？

Every once in a while, some region suffers a drought.

有时候，某个地区会遭受旱灾。