Definition
Occasionally; happening from time to time but not frequently.
偶爾；不頻繁地。
We go downtown once in a while.
我們偶爾會去市中心。
I catch up with my college friends once in a while.
我偶爾會和大學朋友們敘舊。
He calls me once in a while to see how I'm doing.
他偶爾會打電話來關心我的近況。