●on ˈform ( in (good) ˈform) in a good mental or physical state; doing as well as normal状况良好；发挥正常◆He’s really on form tonight and is answering all the questions correctly and very quickly. 今晚他的表现很好，所有的问题都回答得又准又快。◆The team are in good form this season. 该队本赛季的表现很出色。