fifty

/ˈfɪfti/ num.
标准词条 CET-4CET-6
一句话记住

五十

释义与例句

num. 五十
the number 50, five times ten
  1. Fifty new affordable homes will be built near the station.
    车站附近将新建五十套可负担住房。
  2. The speed limit through the village is fifty kilometres an hour.
    穿过该村的路段限速为每小时五十公里。
展开其余 1 条例句
  1. My aunt learned to swim when she was nearly fifty.
    我姑姑快五十岁时才学会游泳。

词源与构词

记忆钩子 整十数词尾用 -ty：fifty 是 50，fifteen 是 15；年龄范围 in his fifties 要用复数，具体年龄则用 fifty years old。

词族与关联词

词族（同一词根派生出的不同词性或形式）
  • fiftieth 第五十；五十分之一
    fifty 对应的序数词，书写缩写为 50th，如 their fiftieth wedding anniversary。
易混词（形近或义近，注意区别）
  • fifteen 十五
    fifty 表示 50，词尾是 -ty，主重音在第一音节；fifteen 表示 15，词尾是 -teen，单独说时主重音通常在第二音节。五十多岁用 in one's fifties，而十五岁是 fifteen years old。
    There are fifteen students in the morning class. 上午班有十五名学生。
常见搭配
  • fifty per cent 百分之五十
    Fifty per cent of the surveyed households own a bicycle. 受访家庭中百分之五十拥有自行车。
  • fifty pounds 五十英镑；五十磅
    The hotel charged a deposit of fifty pounds. 这家旅馆收取了五十英镑押金。
  • in one's fifties 在某人五十多岁时
    He changed careers in his fifties and became a teacher. 他五十多岁时转行当了教师。