反复无常

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

"改变主意已经是第三回了,这人太复无常了!"

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

"英国的天气复无常,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、复无常、轻率的母亲。和她的新丈夫。

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

是我所遇见过的最复无常的傻。

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.

有讽刺意味的是，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复无常。