troughs造句

The boat rolled heavily in the troughs between the waves.
船在波濤起伏的海浪中劇烈搖擺。

There have been peaks and troughs in the long-term trend of unemployment.
長期以來失業(yè)率一直時起時伏。

Spacings between anticlinal crests and synclinal troughs in the be equal in some series of folds.
巖層中的背斜峰和向斜谷之間的距離趨于相等.

The business cycle is a series of peaks and troughs.
商業(yè)周期是一系列的高峰期和低谷期。

• #troughs