贵宾: honored guest, distinguished guest, VIP...
难得一见: rarely seen...
开支: expenditures, expenses, to spend money, (coll.) to pay wages...
炎热: blistering hot, sizzling hot (weather)...
飘: to float...
名贵: famous and valuable, rare, precious...
评论员: commentator...
约定: to agree on sth (after discussion), to conclude a bargain, to arrange, to promise, to stipulate, to make an appointment, stipulated (time, amount, quality etc), an arrangement, a deal, appointment...