scav·enge /ˈskævənʤ, vɪnʤ/
 (vt.)打掃,排除廢氣,到處覓食,清除(vi.)清掃


 Scav·enge v. t. To cleanse, as streets, from filth.
 3. To remove (burned gases) from the cylinder after a working stroke.


 Scav·enge v. i. Internal-combustion Engines To remove the burned gases from the cylinder after a working stroke; as, this engine does not scavenge well.

 ◄ ►


 scavenge
      v 1: clean refuse from; "Scavenge a street"
      2: collect discarded or refused material; "She scavenged the
         garbage cans for food" [syn: salvage]
      3: feed on carrion or refuse; "hyenas scavenge"
      4: remove unwanted substances from [syn: clean]