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by the age of是什么意思,by the age of的意思翻译、用法、同义词、例句

输入单词

常用词典

  • 到……年龄

  • 例句

  • By the age of 21 he controlled the company.

    他21岁就掌管了公司。

  • In some sports you're past it by the age of 25.

    在某些运动中,人过25岁就难有作为了。

  • She will start with a low one-inch heel and build up to a towering five inches by the age of 23, as she teeters into womanhood.

    随着她从女孩变成女人,她将从1英寸的低跟开始,到23岁时逐渐增加到5英寸的高跟。

  • Children ought to be able to read by the age of 7.

    儿童7岁时应该识字了。

  • By the age of sixteen he was the junior lightweight champion of Poland.

    16岁时他已是波兰少年轻量级冠军。

  • 专业解析

    "by the age of"是英语中表示时间节点的常用介词短语,字面含义为"到…年龄时"。其核心用法可分为两点:

    1. 动作完成时限:强调在指定年龄前已完成某个行为(如:She had learned three languages by the age of 10
    2. 状态达成标准:表示达到某年龄后具备特定资格或特征(如:By the age of 18, citizens gain voting rights)

    该短语包含两个语法要素:

    典型应用场景包括:

    需注意与相似短语的区别:

    网络扩展资料

    “by the age of” 是一个英语短语,用于表示“在某个特定年龄之前(已完成某事或达到某种状态)”。以下是详细解析:


    核心含义


    语法结构

    1. 基本形式:
      by the age of + 数字(年龄)

      • She had published her first novelby the age of 20.(她20岁前已出版了第一部小说。)
    2. 时态搭配:
      多与完成时态连用(如过去完成时、现在完成时),强调动作的完成性。

      • By the age of 30, hehad become a CEO.(到30岁时,他已成为了CEO。)

    对比其他类似表达


    常见使用场景

    1. 成就描述:
      By the age of 15, she had mastered three languages.(她15岁前已掌握三门语言。)
    2. 科学研究:
      90% of brain development occursby the age of 5.(90%的大脑发育在5岁前完成。)
    3. 目标设定:
      I want to retireby the age of 40.(我计划40岁前退休。)

    易错点提醒


    掌握这一短语的关键是理解其“截止时间”的含义,并注意搭配完成时态。

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