i guess you are in nursing program right?: X/ N( E/ y" S' T% ]
do not use translator. some of them do not make sense. ; a, H, N# D; @ ^' ^try to use english "answer" website. it might help) y+ N0 T( X M& a$ c1 P, P {
i have one but i never use it. well, leave me messages on "duan xiao xi'