drilling
名词 drilling:
the act of drilling
同义词:boring
the act of drilling a hole in the earth in the hope of producing petroleum
同义词:boring, oil production
动词 drill:
make a hole with a pointed power or hand tool
train in the military, e.g., in the use of weapons
同义词:drill
learn by repetition
同义词:drill, exercise, practice, practise
teach by repetition
同义词:drill
undergo military training or do military exercises
同义词:drill