ebb

ebb
noun

(一般作 the ebb)the movement of the tide out to sea
落潮，退潮
I knew the tide would be on the ebb.
我知道潮水会退去。
[as modifier]the ebb tide.
落潮。

verb

[no obj.](of tidewater) move away from the land; recede
（潮）落，（潮）退。比较 flow
the tide began to ebb.
潮水开始退落。
■(figurative)(of an emotion or quality) gradually lessen or reduce
(喻)（情感，品质）低落；衰退，减退
my enthusiasm was ebbing away.
我的热情正逐渐减退。

常用词组
at a low ebb

in a poor state
处于低潮，处于衰退期
the country was at a low ebb due to the recent war.
由于最近的战争，该国处于衰退期。

ebb and flow

a recurrent or rhythmical pattern of coming and going or decline and regrowth
涨落；兴衰；消长

语源

Old English ebba (noun), ebbian (verb), of West Germanic origin; related to Dutch ebbe (noun), ebben (verb), and ultimately to of which had the primary sense 'away from'

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