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precursor

/.pri:'kә:sә/

★☆☆☆☆托福英语词汇

📖 中文释义

  1. n. 先驱者, 前导, 前兆
  2. [化] 前体; 前身; 产物母体

🔗 释义中的汉语词

🧩 词形变化

复数 precursors

💬 双语例句

  1. China is no exception. The focus on resolving China’s macroeconomic disconnect, reflected at the Fifth Plenum and a likely precursor of what to expect in the upcoming 13th Five-Year Plan, is thus very encouraging.

    而这意味着克服中国家庭在面临不确定的未来时难免会有的谨慎。 让担忧转变为信心对任何社会来说都是艰巨的任务。 中国也不例外。 因此,五中全会表明中国开始将重点放在解决宏观经济分化,这是个非常令人鼓舞的信号。

  2. This vision of Europe is not idealistic; it is simply concerned with how Europeanization can benefit Italians. And, like its nineteenth-century precursor, it is vulnerable to severe backlashes, especially when it appears to bring only pain and suffering.

    蒙蒂是19世纪爱国者在21世纪的翻版,他们认为经济是民族统一的必要条件。 如今,欧洲统一需要经济理由。 这样的欧洲不是理想主义的;其出发点完全是欧洲化能如何让意大利人获益。 与19世纪先辈相同,这很容易产生巨大的反弹力,特别是结果只是痛苦和苦难的时候。

  3. Fruits and vegetables are sources of numerous micronutrients, and some, including b-carotene (a precursor of vitamin A), vitamin C, vitamin E, and selenium, have potential as antioxidants. But what specifically makes fruits and vegetables so beneficial is not clear.

    水果和蔬菜含有丰富的微量营养素,其中的一些,包括β胡萝卜素(维生素A的前身 ) 、 维生素C、维生素E和硒,都有可能成为抗氧化剂。 但是到底是什么使水果和蔬菜对我们身体如此有益至今尚不清楚。

🔵 同义词

🔗 常用搭配

nineteenth century precursorcentury precursorchemical precursorheparin precursorlikely precursorprecursor neededprecursor supplierscarotene a precursor
📘 English Definition(英文释义)
  1. n. a substance from which another substance is formed (especially by a metabolic reaction)
  2. n. a person who goes before or announces the coming of another