i guess you are in nursing program right?: n% Z9 l0 }- b) v* o
do not use translator. some of them do not make sense.2 \7 l: T" T$ a$ l( s
try to use english "answer" website. it might help' P2 u: l, h7 X
i have one but i never use it. well, leave me messages on "duan xiao xi'