他的体重跌到了一个新低。

Tā de tǐzhòng diē dào le yīgè xīn dī.

His weight has fallen to a new low.

股市的股价突然大跌。

Gǔshì de gǔjià túrán dàdiē.

The stock prices in the stock market suddenly took a big fall.

油价的跌势影响了经济。

Yóujià de diēshì yǐngxiǎng le jīngjì.

The downward trend in oil prices affected the economy.