I字母开头的单词或词组(第15页)：
- infect
- infinite
- infinitive
- inflation
- influence
- influential
- inform
- informal
- information
- inherent
- inhuman
- inject
- injure
- injury
- inner
- injustice
- innocent
- ink
- input
- inn
- inquire
- instead
- insect
- inside
- insight
- insist
- inspect
- inspire
- instant
- instance
- instinct
- instruction
- instruct
- instrument
- insult
- insurance
- insure
- intelligence
- intelligent
- intend
- intense
- intensity
- intention
- interact