postbag/ˈpoʊst.bæɡ/名词一次发送(或收进)的信件;(有关同一主题的)一批信件It was clear from our postbag that viewers were unhappy about the programme.从我们收到的来信可以清楚看出,观众们对这个节目不满意。想跟读,去练习