fill-ins 📖 中文释义 (fill-in 的复数) n. 代替者, 补充物, 情况介绍a. 临时填补的 🧩 词形变化 原形 fill-in 📘 English Definition(英文释义) plural of fill-inn someone who takes the place of another (as when things get dangerous or difficult) ← fill-in F 字母词表 fill-or-kill order →