coatn.外套；上衣；层；表皮vt.涂上；覆盖；包上coatomer外被体coatable涂覆式coatlessadj.未穿外套的coatroomn.寄物处；衣帽间coat mass镀层面质量coat rank煤级coat nail挂衣钉coat core膜衣片coatingen包被原coattailsn.[男装的]上衣背尾