placers 📖 中文释义 (placer 的复数) n. 砂矿, 砂矿开采地, 放置者, 得名次者 🧩 词形变化 原形 placer 📘 English Definition(英文释义) plural of placern. an alluvial deposit that contains particles of some valuable mineral ← placer mining P 字母词表 placerville →