下降；减少
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下降；减少
fall-off
The store experienced a significant fall-off in customers after the new mall opened nearby.
新购物中心在附近开业后，这家商店的顾客人数显著下降。
There was a sudden fall-off in temperature when the cold front moved through the area.
冷锋经过该地区时，气温突然下降。
The teacher noticed a steady fall-off in homework quality as the semester progressed.
随着学期的推进，老师注意到作业质量持续下降。
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Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY.