derive
verb OPAL WOPAL S
  /dɪˈraɪv/
  /dɪˈraɪv/
词源late Middle English (in the sense ‘draw a fluid through or into a channel’): from Old French deriver or Latin derivare, from de- ‘down, away’ + rivus ‘brook, stream’.
动词形式
 Phrasal Verbs| present simple I / you / we / they derive |  /dɪˈraɪv/  /dɪˈraɪv/ | 
| he / she / it derives |  /dɪˈraɪvz/  /dɪˈraɪvz/ | 
| past simple derived |  /dɪˈraɪvd/  /dɪˈraɪvd/ | 
| past participle derived |  /dɪˈraɪvd/  /dɪˈraɪvd/ | 
| -ing form deriving |  /dɪˈraɪvɪŋ/  /dɪˈraɪvɪŋ/ |