substance

• 指具有均一性质的某种物质或材料；也指事物的本质、实质或主要内容。

A noun referring to a particular kind of matter with uniform properties, or the essential nature or quality of something.

1. Physical matterA2formal

   A particular kind of matter with uniform properties.

   物质

   • Water is a clear liquid substance.
   • The chemist analyzed the unknown substance.
   • This substance is toxic if ingested.

   同义词fabricmaterialmattermediumstuff

2. Importance or meaningB2formal

   The quality of being important, valid, or significant.

   实质

   • His argument lacked substance and was easily dismissed.
   • The report has little substance and is mostly speculation.
   • She is a woman of substance and integrity.

   同义词consequenceimportimportancemeaningsignificancevalidityvalueweight

   反义词insignificancemeaninglessnesssuperficialitytrivialityunimportance

3. Drug or intoxicantB1informal

   An illegal or harmful drug.

   毒品

   • He was arrested for possession of a controlled substance.
   • The athlete tested positive for banned substances.
   • Substance abuse can lead to serious health problems.

   同义词controlled substancedopedrugintoxicantnarcotic