It is, however, necessary on occasion to work outwith these hours.然而，有时候在这些时点之外也需要工作。He treated them seriously and, on occasion, entertained them hilariously.他对待他们严肃认真，偶尔又逗得他们捧腹不已。Nobody is perfect, and everyone acts tho...

有时， 间或...

on occasion的音标：on occasion的英式发音音标为：[ɔn ə'keiʒən]on occasion的美式发音音标为：[ɑn ə'keʒən]...