i guess you are in nursing program right?3 t8 T" d9 e9 ~
do not use translator. some of them do not make sense.4 ~" p5 C+ J- g4 R3 @7 D$ c
try to use english "answer" website. it might help , z, k" R% H# x- B& B7 \i have one but i never use it. well, leave me messages on "duan xiao xi'