of

A preposition used to indicate relationships between nouns, including possession, origin, material, quantity, subject matter, association, or cause.

• 🇨🇳介词，表示所属、来源、材料、数量、主题、关联或原因。

1. Indicating possession or relationship between things A1 formal

   Used to show that something belongs to someone or something, or to express a connection, attribute, or relationship between two nouns.

   • The cover of the book is torn.
   • What is the name of this song?
   • The leg of the table is broken.
   • The success of the project depends on us.

   🇨🇳所属关系，事物间的关联

2. Showing origin, source, or derivation A2 formal

   Indicates where someone or something comes from, including birthplace, family background, membership, or selection from a group.

   • She is a woman of noble birth.
   • The people of Spain speak Spanish.
   • He is a friend of mine.
   • Some of the students were late.

   🇨🇳来源、出身、出自

3. Specifying material or substance something is made from B1 formal

   Used to identify the material, ingredient, or substance that constitutes an object or thing.

   • The ring is made of gold.
   • She wore a dress of silk.
   • The house was built of brick.
   • It smells of roses.

   🇨🇳材料、成分、由什么制成

4. Expressing amount, quantity, or part of a whole A1 formal

   Used before a noun to indicate a specific number, amount, measure, or portion of a larger group or substance.

   • I would like a cup of tea.
   • There are a lot of people here.
   • Give me a piece of paper.
   • Most of the work is done.

   🇨🇳数量、部分、计量

5. Indicating subject matter or content A2 formal art

   Used to show what something is about, depicts, represents, or concerns.

   • It is a story of love and loss.
   • This is a picture of my dog.
   • He wrote a book of poems.
   • The idea of freedom is important.

   🇨🇳关于，涉及，内容

6. Showing cause, reason, or agent B1 formal

   Used to indicate the cause of death, a feeling, an action, or the agent responsible for something.

   • He died of old age.
   • She trembled of fear.
   • The city was destroyed of war.
   • It was kind of you to help.

   🇨🇳原因、由于、因为、由