记忆方法
联想记忆法：想象一个“occasion”特殊场合，人们偶尔（occasionally）参加，因此“occasional”意味着偶尔发生或出现的。
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中文词源
occasional 偶然的
来自occasion,偶然。
英语词源
- occasional (adj.)
- 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.
权威例句
- 1. She saw the occasional glimmer of a moth's wings.
- 她看见蛾子的翅膀偶尔会泛光。
- 2. An elegant occasional table is framed in the window.
- 一张雅致的供重大活动使用的餐桌被摆放在橱窗里。
- 3. The foggy streets were virtually empty, except for the occasional evening stroller.
- 除了偶尔一两个傍晚出来散步的人，雾蒙蒙的街上空荡荡的。
- 4. She flicked through a romantic paperback between occasional dips in the pool.
- 用在泳池里游一阵后歇一阵的几个空当，她翻完了一本平装本言情小说。
- 5. They have complained of discrimination and occasional rough treatment.
- 他们抗议遭受歧视，而且偶尔还会遭到粗暴的对待。