已然晕菜
In the Young Activities Center -->强调人在建筑物里或At the Young Activities Center--> 把the center当成一个地点, 用at.
青蛙公主999
1.格尔木,并非简单拼音音译,而系藏yu英译2.青少年活动中心,各地均有较一致翻译——Youth & Children‘s Center;既往为青少年宫——Youth & Children‘s PalaceYouth & Children‘s Center, Golmud Municipal Education Bureau供参