Breathing historical relics: When compared to archaeological relics, the difference is that old trees are still alive. They can still excrete oxygen and absorb carbon dioxide, provide cool shade and maintain an ideal living environment.
比起考古遺蹟，老樹還是活的，它還會散出氧氣、過濾灰塵，可以乘涼、消暑氣，有不少老樹也還維持著理想的生活環境。