带领: to guide, to lead...
好客: hospitality, to treat guests well, to enjoy having guests, hospitable, friendly...
学科: subject, branch of learning, course, academic discipline...
无理取闹: to make trouble without reason (idiom); to be deliberately provocative...
数量: amount, quantity, quantitative...
金子: gold...
出毛病: a problem appears, to break down...
脱身: to get away, to escape (from obligations), to free oneself, to disengage...
广告: to advertise, a commercial, advertisement...
息息相关: closely bound up (idiom); intimately related...