The act of drawing a line under; underscoring.画下划线的行为;强调A line under something, such as a symbol, word, or phrase, used to indicate emphasis or italic type.下划线划在符号,词或词组下的线,用以表示强调或斜体打印A line drawn under writing to indicate emphasis or italic type.(表强调的)下划线划在文字下的线,以表示强调或斜体符号Enclosed is our revised quotation, with the modified part underlined for your ready attention.随函附上更正的报价单,有关更改部分下已划线,请予注意。To cross a cheque.支票上划线。Line out a workpiece在工件上划线标明需切除的部分In word processing, a facility to automatically underline text.在字(词)处理技术中,自动在正文下面划线的一种设施score a line on with a pointed instrument, as in metalworking.像在金属加工术中,用特定的工具划线。Rule off that column. We'll close the account at that date.把那一栏用尺划线隔开,我们把帐结算到那天为止。To draw to scale by means of a scale and protractor; plot.测绘用圆规和量角器划线和角;标绘
底线的英文单词为baseline。底线,中文词语,具体释义为最低的标准、条件、限度;事情在能力范围前的临界值;潜藏在敌人内部的人;长方形比赛场地中短边的边线。baseline英文单词的意思为底线、基础、起点,主要用作名词。baseline具体搭配用法例如:You'll need such information to use as a baseline for measuring progress意思为"你会需要这些信息作为衡量进展的基准。"