词尾 -or和-er 有什么规律可循? 网上找来的: 1. verbs ending in a silent e usually change to nouns by ending -er: dive/diver wade/wader write/writer avenge/avenger 2. -er is also the most common way of ending a word for someone carrying out an action: action person carrying out the action reporting reporter playing player fighting fighter listening listener printing printer cleaning cleaner 3. -or is used when the base word ends in -ate, -ct, -it : calculate/calculator create/creator investigate/investigator contract/contractor reflect/reflector conduct/conductor visit/visitor exhibit/exhibitor edit/editor查看更多