n.低气压( depression的名词复数 );凹陷;忧伤;经济大萧条;
例句:
In section configuration, the depressions are either triangle or reversed trapezoid-fenestra structure.
剖面形态上, 这些断陷不是三角形就是倒梯形,即所谓的“花窗结构”.
The rain collected in several depressions.
雨水聚积在几处洼地里.
His frequent depressions were the prelude to a complete mental breakdown.
他经常抑郁寡欢,后来精神完全崩溃了.