温习: to review (a lesson etc)...
导游: tour guide, guidebook, to conduct a tour...
西北: northwest...
请求: to request, to ask, request...
宿舍: dormitory, dorm room, living quarters, hostel...
世代: for many generations, generation, era, age...
电源: electric power source...
私下: in private...
止步: to halt, to stop, to go no farther...
珠宝: pearls, jewels, precious stones...
