troughs
/trɑːf/
动词
大吃，饕餮，狼吞虎咽
She was sitting there troughing chocolate.
她坐在那里大吃巧克力。
在上升之前落入（程度，价格等的）低谷
The economy troughed six months ago and is now growing again.
六个月前经济陷入低谷，现在又开始增长了。
/trɑːf/
名词
槽；饮水槽；饲料槽
cows at the feeding trough
在喂食槽吃草的牛
低谷；低谷期，萧条期
A trough of low pressure over hilly areas will bring heavy thunderstorms overnight.
丘陵地区上空的低气压槽将在一夜之间带来强雷阵雨。