| 单词 | trough |
| 释义 | troughtrough /trɔf/ noun [countable] 1a long narrow open container that holds water or food for animals2the lowest point on a graph (=drawing with lines showing how sets of measurements are related to each other) containing a series of numbers that represent facts or measurements: The graph showed peaks and troughs of activity.3the hollow area between two waves in the ocean or between two hills4earth science a long area of fairly low pressure between two areas of high pressure on a weather map5social studies, economics the lowest point in an economic period that has high and low points, when the total value of all goods and services produced in a country will not fall any further: GDP is now over 10% above the trough of the first quarter in 2000. |
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