precursor
英 [priˈkɜːsə(r)]
美 [priˈkɜːrsər]
n. 先驱; 先锋; 前身
复数：precursors
Collins.1 / BNC.10361 / COCA.9664
牛津词典
noun
- 先驱；先锋；前身
a person or thing that comes before sb/sth similar and that leads to or influences its development
柯林斯词典
- N-COUNT 先驱；先锋；前身
Aprecursorof something is a similar thing that happened or existed before it, often something which led to the existence or development of that thing.- 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。 - He said that the deal should not be seen as a precursor to a merger.
他说该笔交易不应该被看作是合并的前兆。
- Real tennis, an ancient precursor of the modern game, originated in the eleventh century...
英英释义
noun
- something that precedes and indicates the approach of something or someone
- a person who goes before or announces the coming of another
- a substance from which another substance is formed (especially by a metabolic reaction)
双语例句
- Exogenously supplied aspartate is not an active precursor of asparagine in plant tissues.
外来供给的天门冬氨酸，在植物组织中并不是一个活跃的天门冬酰胺前体。 - Comparing the ratio of testosterone to epitestosterone can then indicate whether testosterone or a precursor has been taken.
因此测定睾酮与表睾酮的比例，能够反映出（运动员）是否服用了睾酮或者它的前体药物。 - Cyanide can serve as precursor for the amide nitrogen of asparagine.
***可以作一个天门冬酰胺的酰胺氮前体。 - Papain-catalyzed synthesis of aspartame precursor z-apm in biphasic solvent system wasinvestigated.
本文报道在两相溶剂体系中利用木瓜蛋白酶催化合成aspartame前体z－apm的研究。 - 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。 - Amphetamines is one kind of synthetic compounds whose precursor structure is amphetamine.
***类物质是一大类人工合成的以***为母体的化合物。 - Based on studies of precursor events and unusual animal behavior, a warning was issued by local authorities.
当地政府根据震前先兆与动物的反常行为，发出了地震预警。 - In this way, it's sort of a precursor to Apple's new GarageBand application.
这样，它成为苹果公司的新GarageBand应用程序的先驱。 - An amino acid found in most proteins; a precursor of several hormones.
多数蛋白质中的氨基酸，是许多激素的前体。 - Homology analysis indicated that the protein is identical to the eggshell precursor protein of F.
同源性分析表明该基因编码蛋白质可能具有肝片吸虫卵壳前体蛋白相似的性质和功能。