I字母开头的单词或词组(第20页)：
- increment
- inconsequential
- incredulity
- incorrigible
- incorrigibility
- incorporate
- incontrovertible
- inconstancy
- incompetent
- incumbent
- incubator
- incongruity
- incorruptible
- incur
- indignity
- indignation
- indignant
- indigenous
- indigent
- indict
- indicative
- indicate
- indifferent
- indeterminate
- indenture
- indent
- indemnity
- indemnify
- indefatigable
- indecisive
- indelible
- indecipherable
- inertia
- indigence
- indices
- inequity
- inert
- ineptitude
- inept
- ineluctable
- ineffectual
- ineffable
- industrious
- indurate