我妈妈会气得脸通红，然后跌跌不休地说些刻薄话。

My mother would go red in the face and spout bitter recriminations.

《柯林斯英汉双解大词典》

那么我为什么要在市场跌跌不休时往里投钱呢？

So why am I buying when the market is plunging?

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根据国家建筑协会的数据，跌跌不休的房价，在3月出其不意地反弹了0.9%。

House prices, which have been falling steeply, unexpectedly bounced by 0.9% in March, according to the Nationwide building society.

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