1
alkyne + noun
炔烃可用作名词前的修饰语。
alkyne substrate
炔基底物
炔烃
alkynes — plural of alkyne
先理解核心含义，再看它在真实句子里的用法。
炔烃
A hydrocarbon containing at least one carbon-carbon triple bond.
alkyne substrate
炔基底物
含有至少一个碳碳三键的烃。
A hydrocarbon containing at least one carbon–carbon triple bond.
主要用于焊接和有机合成的无色易燃气体
a colorless flammable gas used chiefly in welding and in organic synthesis
An alkyne contains at least one carbon-carbon triple bond.
炔烃至少含有一个碳碳三键。
The chemist synthesized a new alkyne for the experiment.
化学家为实验合成了一种新的炔烃。
Many alkynes are used as starting materials in organic synthesis.
许多炔烃被用作有机合成的起始原料。
炔烃可用作名词前的修饰语。
alkyne substrate
炔基底物
常用于有机合成语境。
synthesize an alkyne
合成炔烃
描述炔烃的类型。
This alkyne is terminal.
这个炔烃是端基炔。
描述化学反应。
The alkyne reacts with hydrogen.
炔烃与氢气反应。
Not this
There are two alkyne in this reaction.
Use this
There are two alkynes in this reaction.
中文学习者常忘记给可数名词加复数，炔烃（alkyne）的复数是 alkynes。
Not this
Ethylene is an alkyne.
Use this
Ethylene is an alkene.
乙烯（ethylene）属于烯烃（alkene），不是炔烃（alkyne）。学习者容易混淆烯烃和炔烃的名称。
Choose the next layer that will help you use alkynes with more confidence.
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use alkynes naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.