I字母开头的单词或词组(第8页)：
- infectious
- infertile
- inference
- influenza
- infrastructure
- inheritance
- inlet
- inland
- innumerable
- inseminate
- insistence
- insistent
- inspector
- instability
- installation
- instantly
- insulator
- intake
- Iceland
- iceberg
- icy
- intensive
- idealize
- identification
- interchange
- intercourse
- idly
- interpret
- interpretation
- intimacy
- intimidate
- intonation
- immature
- invariable
- immobilize
- impatience
- imperishable
- impersonal
- Irish
- irrational
- irrelevant
- irregularity
- improper
- isolation