i guess you are in nursing program right?* g' ?, h" ~' P& W$ l& s
do not use translator. some of them do not make sense.; J" |: s- S3 K; u* @6 v1 v7 j: N: D
try to use english "answer" website. it might help& ]* [' E! @: i2 J+ ?
i have one but i never use it. well, leave me messages on "duan xiao xi'