At the same time, for some people it may be painful to remember their birthdays as not everyone has happy memories.
在那时，对于一些不像每个人都有美好回忆的人来说，回忆他们的的生日是件痛苦的事。
2
Do birthdays really make people happy?
生日真能使人快乐吗？
3
Along the same lines, I told a friend that one of my happiness-project resolutions was to "Remember birthdays," and so I was sending out happy-birthday emails.