1. 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. This chair grows in a sliding flower trough, and each "foot" grows a willow tree. 这把椅子长在一个可滑动的花槽里，每只“脚”长出一株柳树。
3. The proportion of working-age people with jobs is lower than in the trough of the recession. 适龄劳动人口的就业比例还是低于经济衰退低谷时的比例。
4. The larger structure is the Salton Trough, a depression that stretches from the Gulf of California. 比较大的构造是索尔顿海槽，它是从加利福尼亚湾延伸出的一片洼地。
5. The submersible Alvin investigates the Cayman Trough, a transform boundary on the floor of the western Caribbean Sea. 阿尔文潜水器研究开曼群岛海槽，这是西部加勒比海底面上的转换边界。
