单词	back-scratching
释义	back-scratchingˈback-ˌscratching noun [uncountable] Examples EXAMPLES FROM THE CORPUS On one level the sudden and unexpected friendship thrives on little more than mutual back-scratching. the act of doing nice things for someone in order to get something in return
随便看	obverse obviate obvious obviously obviousness obvs ocarina occasion occasional occasionally occasional table Occident occidental occult occultist occupancy occupant Occupation occupation occupational occupationally occupational therapist occupational therapy occupied occupier

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