late 14c., "occurring now and then," from occasion (n.) + -al (1). Meaning "casual" is 1560s. Meaning "happening on or pertaining to a particular occasion" is from 1630s. Of furniture, etc., from 1749.
雙語例句
1. She saw the occasional glimmer of a moth's wings.
她看見蛾子的翅膀偶爾會泛光。
來自柯林斯例句
2. An elegant occasional table is framed in the window.
一張雅致的供重大活動使用的餐桌被擺放在櫥窗里。
來自柯林斯例句
3. The foggy streets were virtually empty, except for the occasional evening stroller.
除了偶爾一兩個傍晚出來散步的人，霧蒙蒙的街上空蕩蕩的。
來自柯林斯例句
4. She flicked through a romantic paperback between occasional dips in the pool.
用在泳池里游一陣后歇一陣的幾個空當，她翻完了一本平裝本言情小說。
來自柯林斯例句
5. They have complained of discrimination and occasional rough treatment.