lockdown /'lɔkdajn/ 📖 中文释义 n. <美>(对囚犯的)一级防范禁闭, 一级防范禁闭期 📘 English Definition(英文释义) n. the act of confining prisoners to their cells (usually to regain control during a riot) ← lockbox L 字母词表 locke →