trough的复数形式为：troughs...

The old stone cattle trough still sits by the main entrance.陈旧的石制牛食槽仍然放在大门口。The trough of low pressure extended over about 1000 kilometres.低压槽延伸约1,000公里。As the wave bore down on us, the trough deepened.当波涛向我们压来时, 波谷加深了....

As the wave bore down on us, the trough deepened.当波涛向我们压来时, 波谷加深了.The old stone cattle trough still sits by the main entrance.陈旧的石制牛食槽仍然放在大门口。The trough of low pressure extended over about 1000 kilometres.低压槽延伸约 1,000 公里...

trough的音标：trough的英式发音音标为：[trɒf]trough的美式发音音标为：[trɔf]...

The boat rolled heavily in the troughs between the waves.船在波涛起伏的海浪中剧烈摇摆。There have been peaks and troughs in the long-term trend of unemployment.长期以来失业率一直时起时伏。Spacings between anticlinal crests and synclinal troughs in t...

n.水槽，食槽，低谷期，[航]深海漕，[气]低气压槽...