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Trough
01
天沟, 屋檐沟
a channel along the eaves or on the roof; collects and carries away rainwater
02
凹槽, 洼地
(geology) a long, narrow depression or hollow, often occurring naturally, such as in the landscape or ocean floor
Example
The river carved a deep trough through the canyon over millions of years, creating stunning natural landscapes.
这条河在数百万年中在峡谷中雕刻出一条深凹槽，创造了令人惊叹的自然景观。
Glaciers can leave behind troughs in the form of U-shaped valleys as they carve through mountainous regions.
冰川在穿越山地时可以留下以U形谷为形式的洼地。
03
饲 trough, 槽
a container (usually in a barn or stable) from which cattle or horses feed
04
槽, 水槽
a long narrow shallow receptacle
05
国库, 政府资金库
a treasury for government funds
06
槽, 凹槽
a concave shape with an open top
