- A slim briefcase with flat, rigid sides, hinges, and usually a lock.手提公文箱：一种轻薄的，面扁平且硬，有铰链的手提箱，通常有锁
- inconsistency
- inconsistent
- inconsolable
- inconsonant
- inconspicuous
- inconstancy
- inconstant
- inconsumable
- incontestable
- incontestible
- incontinence
- incontinency
- incontinent
- incontrollable
- incontrovertible
- inconvenience
- inconvenient
- inconvenients
- inconvertible
- inconvincible
- incoordinate
- incoordinated
- incoordination
- incorporate
- incorporated