單詞falloff的讀法是：英['f?l?f];美['f?l?f]。falloff的意思是下降;衰減。
英語解釋：
名詞fall off:
a noticeable deterioration in performance or quality
同義詞：slump,slack,drop-off,falloff,falling off
動詞fall off:
come off
fall heavily or suddenly;decline markedly
同義詞：slump,sink
diminish in size or intensity
同義詞：fall away
例句
用作名詞(n.)
Arab diplomats say they have already detected a falloff in American influence in their region over the past year.
阿拉伯國家的外交官們說，他們已經發現美國在阿拉伯地區的影響力過去壹年中出現了下降。
Other banks have suffered declines in deposits,with the steepest falloff at institutions beset with large losses.
其他壹些銀行則出現下降，較嚴重的是那些遭受重大損失困擾的機構。
The position of these ground locators can be adjusted later to tweak the falloff of the shadow attenuation.
那些地面上的定位器的位置能稍後時被調整去配合陰影衰減的散開。
By adding steerable sidelobe dips and achieving high sidelobe falloff rate,the windows can be used to detect a weak signal with a strong signal nearby.
只要在視窗裏加上可指定位置的附葉窪溝和達到高的附葉衰減率，此視窗就能把在強信號附近的弱信號偵察出來。
近義詞
falling off減退
decrease減少
decline下降
reduction減少
drop落下
cut切
slump大幅度下跌
slack松弛的
drop-off急下降
urgent的用法和搭配