- drill
- 钻孔: drill; bore; drill hole perf ...
- 操练: drill
- 操练: drill; practice 士兵们在兵营练兵场操练。 the soldiers were at drill in the barrack-yard.; 操练椅 plint
- 钻孔: [矿物学]1.(用尖锐的旋转工具在坚硬的物体上钻穿或钻孔洞) drill; bore; drill hole2.(为了装饰或识别而打孔) perforate3.(用钻钻的孔) borehole; solid boring; bouche4.(钻孔的一种动作和方法) boring; punching◇钻孔工 drillman; 钻孔机 drilling machine
- 操练队: drill team
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