熱帯

1. Origins, structure, and basic meaning

• Structure: Written 熱帯 and read ねったい, it denotes the tropical climate zone and regions around the equator that remain warm year-round.
• Basic usage: It identifies the home environment of greenhouse plants and the setting of an adventure novel.

2. Common pitfalls and similar expressions

• Climate region rather than a hot day
  • The term is a geographic and climatic category, not a temporary spell of warm weather.