precursor
英 [prɪ'kɜːsə]
美[pri'kɝsɚ]
- n. 先驱，前导
词态变化
复数: precursors;
中文词源
precursor 先驱，先锋
pre-,在前，-curs,跑，词源同course,cursor.
英英释意
- 1. a substance from which another substance is formed (especially by a metabolic reaction)
- 2. a person who goes before or announces the coming of another
- 3. an indication of the approach of something or someone
英文词源
- precursor
- precursor: see course
- precursor (n.)
- early 15c., from Middle French precurseur and directly from Latin praecursor "forerunner," agent noun from past participle stem of praecurrere, from prae "before" (see pre-) + currere "to run" (see current (adj.)). Related: Precursory.
实用场景例句
- Error is often the precursor of what is correct.
- 错误常常是正确的先导.
《现代汉英综合大词典》
- Real tennis, an ancient precursor of the modern game, originated in the eleventh century.
- 室内网球，现代网球运动的古老前身，起源于11世纪。
柯林斯例句
- Error is often the precursor of what is correct, but conceit is the prelude to a fall.
- 错误往往是正确的先导, 骄傲是跌跤的前奏.
《简明英汉词典》
- In the past this had been the precursor to strong decisions.
- 要是在过去,这就是要采取强力行动的预兆.
辞典例句
- Hobbes is a precursor of modern positivism and analytical jurisprudence.
- 霍布斯是现代实证主义法学和分析法学的先驱.
辞典例句
- In plant cells the principal precursor of alanine , as well as leucine and valine, is pyruvate.
- 植树细胞中丙氨酸和亮氨酸 、 缬氨酸的主要前体是丙酮酸.
辞典例句
- Thiophene, a highly common substance, serves as a versatile precursor to a variety of amino acids.
- 噻吩是一种很普通的物质, 它可以作为合成各种氨基酸的母体.
辞典例句
- The immediate transcript of a t RNA gene is known as precursor tRNA.
- tRNA基因的直接转录物叫做tRNA前体.
辞典例句
- Most dolomite is obviously the result of replacement of precursor calcite but certainly not all.
- 多数白云石显然是原来方解石交代的结果,但肯定不是全部.
辞典例句
- N - acetylcysteine a precursor of glutathione in cells, is a thiol antioxidant.
- 乙酰半胱氨酸是细胞内还原性谷胱甘肽的前体, 是一种含有巯基的抗氧化剂.
互联网
- Amphetamines is one kind of synthetic compounds whose precursor structure is amphetamine.
- 苯丙胺类物质是一大类人工合成的以苯丙胺为母体的化合物.
互联网
- Glycerate 3 - phosphate is a precursor of the amino acid serine.
- 甘油 3- 磷酸是丝氨酸的前体.
互联网
- The precursor of the pigment from Peristrophe baphica is an unstable compound.
- 山蓝色素前体是很不稳定的化合物.
互联网
- They alter the way it cleaves amyloid precursor protein.
- 它们改变了这个酶切割淀粉样蛋白前体的方式.
互联网
- What became of the head of the Precursor is difficult to determine.
- 这位先驱者的人头的来源很难确定.
互联网