trough /trɒf/ star1 TEM4 (troughs)

• 1.  

  N-COUNT（可数名词） A trough is a long narrow container from which farm animals drink or eat. 饮水槽; 饲料槽

  例：

  The old stone cattle trough still sits by the main entrance.

  那尊古老的石制牛食槽依旧位于主要入口处。

• 2.  

  N-COUNT（可数名词） A trough is a low area between two big waves on the sea. (波浪间的) 波谷

  例：

  The boat rolled heavily in the troughs between the waves.

  小船在海浪间的波谷中剧烈地摇晃着。

• 3.  

  N-COUNT（可数名词） A trough is a low point in a process that has regular high and low points, for example, a period in business when people do not produce as much as usual. 低谷

  例：

  ...recovery from the industry's worst-ever trough in 2001 and 2002.

  …从2001和2002年工业的最低谷复苏。

• 4.  

  N-COUNT（可数名词） A trough of low pressure is a long narrow area of low air pressure between two areas of higher pressure. (低气压) 槽 [技术]

  例：

  The trough of low pressure extends over 1,000 miles.

  低气压槽延伸一千多英里。