a strong column made of stone, metal, or wood that supports part of a building(建筑物的)柱子,支柱;墩
a very important member or part of a group, organization, system, etc.重要成员;栋梁,中坚
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net切換為繁體中文