Translation

• to say goodbye
• to bid farewell
• to pay a farewell call

Synonyms

• 叙别, 话别

Examples

• 火车开出的时候，他们都挥手向父母道别。
  They waved good-bye to their parents as the train pulled out.
• 不知道别的星球上有没有生物呢？
  I wonder if life exists on other planets.