once in a while什么意思解释

once in a while的音标：once in a while的英式发音音标为：[wʌns in ə hwail]once in a while的美式发音音标为：[wʌns ɪn e hwaɪl]...

Once in a while we had a major blowout.我们偶尔会吃顿大餐。Once in a while she phoned him.她间或会给他打个电话。He went to see them once in a while.他偶尔去探望他们....