Rambling
来自Big Physics
late Middle English (in ramble (sense 2 of the verb)): probably related to Middle Dutch rammelen, used of animals in the sense ‘wander about on heat’, also to the noun ram.
etymonline
rambling (adj.)
1620s, "wandering about from place to place," present-participle adjective from ramble (v.). From 1630s as "wandering from topic to topic."