by Xinhua writer Hua Hongli
DAR ES SALAAM, May 5 (Xinhua) -- At the rim of Tanzania's Ngorongoro Crater, mist still clings to the plains as herds of wildebeest and zebra roam below. From a newly built lookout platform, visitors from around the world now take in the sweeping view alongside signage in Swahili, English, and Chinese, a subtle but powerful sign of transformation.
