The wanderer has to sleep rough.这个流浪汉到处为家.Jobless and penniless , he had to sleep rough in the fields for several months.他既无工作又无钱,只好在野外露宿数月.Those who do not have relatives to return to are left to wander the streets and ...
胆石通常是在胆囊中形成的.Gallstones usually form in the gall bladder.胆石症是由胆汁的成分形成的.Gallstones are formed from the constituents of bile.胆石症的发病率随年龄而逐渐增高.The incidence of gallstones increases progressively with age....