tropical and sub-tropical region

• 热带亚热带

tropical and sub-tropical region的用法和样例：

例句

1. Preserved fruits were very popular in the tropics and subtropics.
   果脯是热带亚热带地区比较流行的一种休闲食品。
2. Epidemic human influenza occurs all year around in tropical and subtropical areas.
   在热带亚热带地区，人类流感的流行一年四季都可发生。