a bullet encased in steel
钢壳子弹
The precious gold rings and necklets were encased in box to preserve them.
珍贵的金戒指和项链珍藏在盒子里。
英汉双解词典包含483723条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。