单词falloff的读法是：英['fɒlˌɒf];美['fɒlˌɒf]。falloff的意思是下降;衰减。
英语解释：
名词fall off:
a noticeable deterioration in performance or quality
同义词：slump,slack,drop-off,falloff,falling off
动词fall off:
come off
fall heavily or suddenly;decline markedly
同义词：slump,sink
diminish in size or intensity
同义词：fall away
例句
用作名词(n.)
Arab diplomats say they have already detected a falloff in American influence in their region over the past year.
阿拉伯国家的外交官们说，他们已经发现美国在阿拉伯地区的影响力过去一年中出现了下降。
Other banks have suffered declines in deposits,with the steepest falloff at institutions beset with large losses.
其他一些银行则出现下降，较严重的是那些遭受重大损失困扰的机构。
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后时被调整去配合阴影衰减的散开。
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.
只要在视窗里加上可指定位置的附叶洼沟和达到高的附叶衰减率，此视窗就能把在强信号附近的弱信号侦察出来。
近义词
falling off减退
decrease减少
decline下降
reduction减少
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