6N-VAR [oft NOUN n](尤指士兵进行的)练习,训练,操练 A drill is repeated training for a group of people, especially soldiers, so that they can do something quickly and efficiently. (尤指士兵进行的)练习,训练,操练
The Marines carried out a drill that included 18 ships and 90 aircraft.
海军陆战队进行了有 18 艘军舰和 90 架飞机参与的训练。
His hands were clasped behind him like a drill sergeant.
他双手背在身后,像一个教官。
7N-COUNT [oft n NOUN](为在危急情况下逃生而进行的)常规训练,演习 A drill is a routine exercise or activity, in which people practise what they should do in dangerous situations. (为在危急情况下逃生而进行的)常规训练,演习