Article in English: ” People understand that you’ll be emotional or in pain. When they say “I’m sorry for your loss,” they just want you to know that they support you, and won’t be expecting a longer conversation. A simple “thank you” works.  Other short phrases you can say are, “I appreciate it,” or “That’s very kind.” If the other person knew the deceased and is grieving too, you can acknowledge that by also responding, “This must be hard for you, too.” If you’re responding to an online message or writing a card, this doesn’t need to be long. Thank the recipient for their sympathy or support. You can mention a specific detail, such as the flowers they sent or how they attended the memorial service.  Here is an example of a thank you message: “Thank you for expressing your sympathy during this difficult time for our family. I truly appreciated the beautiful flowers you sent. Your love and support means a lot to me.” If you’re responding in a letter, choose a word to conclude your note based on your relationship with the recipient. If it’s a close family member or friend, you can write “love” or “with love.” If it’s someone you don’t know as well, like the deceased’s friend or coworker, you can write “warm regards” or “sincerely.” Some people respond to condolences within a few weeks to help them heal more quickly. If you are not ready to reply, take more time to grieve. Try writing a few responses after 2 to 3 months. If it’s still difficult, you can ask a friend to help you.

Summary in Chinese:
用真诚的“谢谢”来回应那些亲自来慰问你的人。 给送慰问卡或礼物的人写一封简单却真诚的信。 等你准备好了，再回复邮件。