trough
trough
noun
noun
- a long, narrow open container for animals to eat or drink out of
（给动物进食或饮水的）槽
a water trough.
水槽。
■a container of a similar shape used for a purpose such as growing plants or mixing chemicals
（用于培植植物、调配化学制品的）槽器
■a channel used to convey a liquid
（运水的）沟槽
■a long hollow in the earth's surface
地表槽谷
a vast glacial trough.
巨大的冰槽。
■an elongated region of low barometric pressure
低压槽，槽形低压
■a hollow between two wave crests in the sea
（海水水波之间的）波谷
■a low level of economic activity
（经济周期中的）低谷期
■(Mathematics)a region around the minimum on a curve of variation of a quantity
(数)凹点
■a point of low achievement or satisfaction
低谷（成绩小或不令人满意）
learning a language is a series of peaks and troughs.
语言学习过程中会有一系列的高峰期和低谷期。
- Old English trog, of Germanic origin; related to Dutch trog and German Trog, also to tree
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