Thehumanbodyisanamaz的精选

问题详情：Thehumanbodyisanamazingandcomplexmachine.Itisverytough,andweusuallyrecoverfromillnessorinjuryonourown,withoutthehelpofadoctor.Butwhathappenswhenweneedmedicaltreatment?Inthepast,somepeoplewentt...