| 释义 |
break down transitive verb 1. a. : to cause to fall or collapse by breaking or shattering : batter down : destroy < breaking down the door > b. : to wear down into a defective or useless condition by attrition c. : to bring about loss of force or effectiveness of : make ineffective : impair, dispel < breaking down the old legal codes > 2. a. : to separate (as a chemical compound) into simpler substances : decompose b. : to take apart especially for storage or shipment and for later reassembling < a machine that can be broken down quickly and transported by plane > c. (1) : to reduce (a log) to a convenient size for sawing in the mill (2) : to saw (a log) into cants 3. a. : to tone down : qualify < break down a color > b. : to make (rubber) plastic : soften, masticate 4. : to stop (a sawmill or machine) because of an accident intransitive verb 1. a. : to become inoperative through breakage or wear : lose ability to operate or function < the old truck broke down on the hill > b. : to become inapplicable or ineffective < the governor fled, royal authority broke down — American Guide Series: North Carolina > < under critical analysis almost all distinctions previously made tended to break down > 2. a. : to be susceptible to analysis or subdivision : to be readily analyzed < the chronicle breaks down into three large parts — Mark Schorer > b. : to undergo decomposition < the old highly folded rocks have been breaking down gradually into soil — L.D.Stamp > Synonyms: see analyze |