There have been peaks and troughs in the long-term trend of unemployment.
Từ Vựng Tiếng Anh Theo Chủ Đề - Trough - Noun - Economic trends - Money - Work and business - Oxford 3000 and 5000 | Mặt VẹoThe economy is unlikely to reach its trough until the turn of the year.
The stock market fell by 48% from peak to trough.