例句與造句

1. Sometimes a phase iv ( post - approval ) trial is also pursued , where the long - term effects of the drug are monitored on those receiving prescriptions
   有時(shí)還有第四階段，這期間藥物的長(zhǎng)期效果在接受藥物的病人中被監(jiān)測(cè)。
2. It's difficult to find post-approval in a sentence. 用post-approval造句挺難的