古迹: places of historic interest, historical sites...
回头: to turn round, to turn one's head, later, by and by...
文凭: diploma...
嘉宾: esteemed guest, honored guest, guest (on a show)...
不解: to not understand, to be puzzled by, indissoluble...
一再: repeatedly...
作文: to write an essay, composition (student essay)...
靶子: target...
外边: outside, outer surface, abroad, place other than one's home...
慌张: flustered, agitated...