prefixKK [ˋprifɪks] /ˈpɹifɪks/发音名词1字首、前缀语言学The prefix "un-" turns an adjective into its opposite.字首「un-」会把形容词变成相反的意思。2前置码、冠码通讯You need to dial the country prefix before the number.拨号码之前要先拨国码前置码。3称谓、头衔正式Please write your name with the appropriate prefix, such as Dr.请在姓名前加上适当的称谓,例如博士。动词1加上字首、在前面加上All the file names are prefixed with the date.所有档名前面都加上了日期。2以…开场、先讲正式She prefixed her talk with a short apology.她在演讲开始前先简短道歉。用这个字练口说→