billionaire /.biljә'nєә/ ★☆☆☆☆ 📖 中文释义 n. 亿万富翁 🧩 词形变化 复数 billionaires 📘 English Definition(英文释义) n. a very rich person whose material wealth is valued at more than a billion dollars ← billion-dollar grass B 字母词表 billionaires →