1. He acted not from reason, but from caprice.
    他不是凭理智，而是凭幻想来行动。

2. Her decision to wear only black clothes was pure caprice.
    她决定只穿黑衣服完全是忽发奇想。

1. 随想曲,畅想曲,奇想曲：capriccioso 自由的,随想的 | caprice 随想曲,畅想曲,奇想曲 | capricciesamente 自由的,随想的

2. 随想曲 美国福特：Capri 卡普里 美国福特 | Caprice 随想曲 美国福特 | Caralier 卡瓦利

1. 任性;反复无常;善变
    A caprice is an unexpected action or decision which has no strong reason or purpose.

    e.g. I lived in terror of her sudden caprices and moods.
           她的任性妄为和喜怒无常让我整天提心吊胆。

1. a sudden desire

    e.g. he bought it on an impulse

    Synonym: impulsewhim