請教一道06年12月3日的口語真題

Describe a social activity which is of special value for you. Please explain why it is of special value for you and include specific examples.

請教一下

這裡的 "social activity" 到底是指什麼??

實在弄不清啊!

有人可以幫我舉例嗎??

I guess social activity is a kind of collectivity action happen in our spare time, especially so many people taking part in.

such as festival party, schoolfellow party ,visitng museum with your classmates,being a volunteer of Olympiad