House prices keep rising and falling but they should eventually even out.

房价一直时涨时落，但最终应该会趋于稳定。

《牛津词典》

A falling share price suggests that the market thinks it increasingly likely that profits have peaked, but analysts forecast that they will keep rising.

股价下跌说明市场越来越感觉到投行的收益已过巅峰期，但分析师却预测其仍有上升空间。

youdao

They will keep prices from falling back to anywhere near the levels of the early 2000s.

这将不会使粮价回落至接近21世纪初的水平。

youdao

They say they can keep rain from falling on the Bird's Nest Stadium during the opening ceremony - the stadium has no roof - but scientists elsewhere are dubious about that kind of technology.

NPR: Beijing Preps For Opening Of Olympics

But those trying to show stronger gains than competitors say they must either keep buying stocks or risk falling behind.

WSJ: S&P Record Is a Show of Faith in Fed

They will now be as keen to keep them from falling too far.

ECONOMIST: Debt and deflation