upward momentum的用法和樣例：
例句
- Indicators for earnings momentum remain upbeat with more earnings upgrades than downgrades.
收益上升勢頭依然持續，對收益向上的調整多過向下的調整。 - Wall Street showed signs of fatigue yesterday after its recent exertions although European and Asian stocks managed to maintain their earnings-driven upward momentum.
在最近大幅上漲之後，美國股市昨天顯示出疲軟跡象，但歐洲和亞洲股市仍保持了業績驅動的上升勢頭。
