2. A negative number refers to a number less than zero. Use the minus sign (-) before the number, for example, write -5℃ at minus five degrees Celsius.

3. Ethnic minorities [Shmo Shmí n Zú] Ethnic groups other than the largest ethnic group in multinational countries (such as China) refer to ethnic groups other than the Han nationality.

4, scold [shǔ Luo] list faults and blame, generally referring to blame.