chance upon

同根派生

英汉例句

• I tumbled upon an interesting book in the library.
  我在图书馆偶然发现了一本有趣的书。
• I found him work in a cafeteria by chance.
  我偶然发现他在一家自助餐厅工作。
• I meet him in the street by chance.
  我在大街上偶然碰见了他。