1
a trough of
表示装满某物的槽，后接物质名词。
The horse drank from a trough of water.
马从一槽水中喝水。
食槽；水槽；槽形物
先理解核心含义，再看它在真实句子里的用法。
食槽；水槽；槽形物
A long, narrow open container, as for feeding or watering animals, or any similar open container or concave shape.
The horse drank from a trough of water.
马从一槽水中喝水。
一种长而窄、顶部开口的容器,用于喂食或给动物饮水。
A long, narrow container, open on top, for feeding or watering animals.
狭窄的凹陷(如地面、海浪之间或海床)
a narrow depression (as in the earth or between ocean waves or in the ocean bed)
任何类似形状的容器。
Any similarly shaped container.
屋檐或屋顶上的排水沟；收集并排走雨水
a channel along the eaves or on the roof; collects and carries away rainwater
The farmer filled the trough with fresh water for the cows.
农夫往水槽里加满清水给奶牛喝。
The pigs were eating from the long trough in the corner of the pen.
猪正在围栏角落的长食槽里吃食。
She scrubbed the empty trough before adding the horse feed.
她先把空食槽刷洗干净，然后放入马饲料。
表示装满某物的槽，后接物质名词。
The horse drank from a trough of water.
马从一槽水中喝水。
常用于描述波浪或周期的低点。
The boat was in the trough of a wave.
船在波浪的波谷中。
用于比喻义，表示最低点。
The economy is at a trough of its cycle.
经济正处于周期的低谷。
Not this
The horse is drinking from trough.
Use this
The horse is drinking from a trough.
中文学习者常遗漏冠词。'trough' 是可数名词，单数形式前需要不定冠词 'a' 或定冠词 'the'，此处泛指一个水槽，应用 'a trough'。
Not this
He put the food on the trough.
Use this
He put the food in the trough.
中文'在...上面'可能误导使用介词 'on'，但英语中对于容器内部放置物品，应用 'in'。'trough' 是容器，食物应放在槽内，而非表面上。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
喂食槽
The farmer filled the feeding trough with hay.
农夫把干草装满了喂食槽。
水槽
The horses drank from the water trough.
马匹从水槽里喝水。
波谷
The boat sank into the trough of the wave.
船沉入了波谷。
屋顶排水沟
The roof trough was clogged with leaves.
屋顶排水沟被树叶堵住了。
低谷期
The economy is experiencing a trough period.
经济正经历低谷期。
地面凹陷
The melting snow created a ground trough.
融雪形成了地面凹陷。
高峰和低谷；起伏
The stock market has seen many peaks and troughs this year.
今年股市经历了许多高峰和低谷。
处于……的低谷
The country is in the trough of an economic depression.
这个国家正处于经济萧条的低谷。
在利益分配处；捞取好处
The politicians were all at the trough, grabbing whatever they could.
政客们都围在利益分配处，能捞多少捞多少。
Use trough naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象U形凹槽(trough)导流雨水
语域：neutral 常见场景：建筑，屋顶排水、农业，牲畜喂食 通常用于描述屋顶或屋檐的排水沟，以及农业中用于喂养牲畜的开放式容器。该词在技术或日常语境中均可使用，但更偏向于正式或专业描述。
可数名词，可用冠词a修饰
Dictionary facts from ECDICT, WIKTIONARY.