反复无常

He was the most unstable kind of fool I had ever seen.

他是我所遇见过的最无常的傻瓜。

English weather is very inconsistent; one moment it's raining and the next it's sunny.

"英国的天气无常,一会儿下雨,一会儿又放晴。"

I would miss my loving, erratic, harebrained mother. And her new husband.

我会怀念我的那个深、无常、轻率的母亲。和她的新丈夫。

It's the third time that he changed his mind; he's so fickle!

"他改变主经是第三回了,他这人太无常了!"

Ironically, even as the government was fulminating against American policy, American jeans and videocassettes were the hottest items in the stalls of the market, where the incongruity can be seen as an example of human inconsistency.

具有讽的是，甚至当政府正强烈谴责美国的政策时，美国牛仔裤和录像带却是市场的摊位上最抢手的商品，因为此处的前后不一致可被视为代表了人类的无常。