The reaction produced an ester and water.
反应生成了一种酯和水。
The fragrance of the perfume comes from an ester.
香水的香味来自一种酯。
The ester was used as a solvent in the experiment.
这种酯在实验中被用作溶剂。
The chemist synthesized an ester in the laboratory.
化学家在实验室合成了一种酯。
They studied the properties of the ester in their research.
他们在研究中研究了这种酯的性质。