onsetterWiktionary 原文1词源 1构词拆分on词根/词干+setter词根/词干词源说明From on + setter.释义（英文）名词 Noun(mining, historical, UK, dialect, Northern England) A worker at the bottom of a mineshaft who exchanges the empty and full corves.2词源 2构词拆分onset词根/词干+-er后缀(added to verbs) A person or thing that does an action indicated by the root verb; used to form an agent noun. · (added to verbs, informal) A person or thing to which the root verb is done or can be done satisfactorily.词源说明From onset