back-trough

基本解释

The Mariana Trough is an active spreading back-arc basin.
马里亚纳海槽是一个正在扩张的弧后盆地。
In a few short weeks I had traced The Secret back trough the centuries, and I had discovered the modern-day practitioners of The Secret.
短短几个星期内，我回溯数个世纪史料追踪这个秘密，并发现了这秘密的当代实践者。
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Seybold is riding American Tower (nyse: AMT - news - people ) back up out of the trough.
FORBES: Gurus Target Telecoms
The unemployment rate has dropped more than 40% of the way back to its pre-recession level, but the employment-to-population ratio is closer to its trough than its pre-recession peak.
FORBES: Unemployment Rate Down As Americans Give Up On Work
Both CEOs took over their companies near the bottom of the capital markets trough and have worked their companies back up to a stock price nearly identically above the pre-crash all-time high.
FORBES: Is The Stock Market Rational? P&G vs. Unilever