1、外用英语：external，英 [?k?st??nl] 美 [?k?st??rnl]。
2、此涂液仅限外用。The lotion is for external use only.
3、这种软膏只可外用。This ointment is for external use only.
4、用棉球涂外用药水。Use a cotton ball to apply the lotion.