项: Ⅰ名词1.(颈的后部) nape (of the neck) 短语和例子颈项 neck2.(款项) sum (of money) 短语和例子进项 income; 欠项 liabilities; 用项 items of expenditure; expenditures3.[数学] (不用加、减号连接的单式) term 短语和例子同类项 similar terms; 外项 e
频: Ⅰ形容词(次数多) frequent 短语和例子这儿春季雨很频。 rains are frequent here in spring.Ⅱ副词(屡次) frequently; repeatedly 短语和例子捷报频传。 reports of new victories keep pouring in.Ⅲ名词1.[物理学] (物体每秒钟振动的次数) frequency 短语和例