N-VAR [oft on/atN]一时的兴致;心血来潮;突发的奇想 A whim is a wish to do or have something which seems to have no serious reason or purpose behind it, and often occurs suddenly. 一时的兴致;心血来潮;突发的奇想
We decided, more or less on a whim, to sail to Morocco.
我们多少有点心血来潮,决定航海去摩洛哥。
The premium can increase at the whim of the insurers. [+ of]
保险公司可以随时提高保费。
Lately, the president has been sacking and picking new ministers at whim.