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1. Oxford Dictionary

   backwash

   • IPA[ˈbakwɒʃ]

   英式

   • n.
     the motion of receding waves；a backward current created by an object moving through water or air
   • v.
     clean (a filter) by reversing the flow of fluid through it

   • verb: backwash, 3rd person present: backwashes, gerund or present participle: backwashing, past tense: backwashed, past participle: backwashed

   • noun: backwash

2. • 釋義

   n.

   名詞

   • 1. the motion of receding waves the backwash is reduced in energy by the percolation of water into the shingle 同義詞 wake, wash, slipstream, backflow, path, ... 更多trail
   • ▪ a backward current created by an object moving through water or air the backwash of a truck on the autobahn
   • ▪ the unpleasant after-effects of an event the backwash of the Cuban missile crisis 同義詞 repercussions, reverberations, after-effects, aftermath, fallout, ... 更多upshot, consequences, results, effects, by-products
   • ▪ the liquid that flows back into a bottle, glass, etc. after someone has taken a drink, assumed to contain that person's saliva Can you please stop drinking straight from the milk carton? I don't want your backwash!

   v.

   動詞

   • 1. clean (a filter) by reversing the flow of fluid through it the very fine mesh is backwashed to remove solids