used to form nouns that refer to an action or series of actions(用于构成名词,表示行为)
used to form nouns that describe a state or quality(用于构成名词,表示某种状态或性质)
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net切換為繁體中文