1
acetaldehyde is used in the manufacture of [product]
常用于有机合成工业。
Acetaldehyde is used in the manufacture of acetic acid.
乙醛用于制造乙酸。
乙醛
先理解核心含义，再看它在真实句子里的用法。
乙醛
a colorless organic compound, CH3CHO, found widely in nature and produced industrially on a large scale
Acetaldehyde is used in the manufacture of acetic acid.
乙醛用于制造乙酸。
一种无色有机化合物,CH3CHO,广泛存在于自然界,并在工业上大规模生产。
A colourless organic compound, CH3CHO, occurring widely in nature and being produced on a large scale in industry.
The chemist carefully measured the acetaldehyde for the experiment.
化学家仔细测量了实验所需的乙醛。
Acetaldehyde is used in the manufacture of perfumes and drugs.
乙醛用于制造香水和药物。
Some fruits naturally contain small amounts of acetaldehyde, which gives them a distinct smell.
有些水果天然含有少量乙醛，这赋予了它们独特的气味。
常用于有机合成工业。
Acetaldehyde is used in the manufacture of acetic acid.
乙醛用于制造乙酸。
也天然存在于某些植物中。
Acetaldehyde is a key component in perfumes and drugs.
乙醛是香水和药物中的关键成分。
Not this
The acetaldehyde is a colorless liquid.
Use this
Acetaldehyde is a colorless liquid.
不可数名词前通常不使用定冠词，除非特指。这里泛泛而谈，应去掉"the"。
Not this
The reaction produces acetaldehydes.
Use this
The reaction produces acetaldehyde.
acetaldehyde 是不可数名词，不应加复数形式。
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Dictionary facts from ECDICT, WIKTIONARY.