分类: classification...
床位: bed (in hospital, hotel, train etc), berth, bunk...
削: to peel with a knife, to pare, to cut (a ball at tennis etc)...
要: demand, ask, request, coerce, important, vital, to want, to be going to, must...
为: act as, take...to be, to be, to do, to serve as, to become, because of, for, to...
免疫: immunity (to disease)...