drills 在英语中是什么意思？与 Lingoland 一起探索这个词的含义、发音及具体用法
演习
a hand tool, power tool, or machine with a rotating cutting tip or reciprocating hammer or chisel, used for making holes.
instruction or training in military exercises.
produce (a hole) in something by or as if by boring with a drill.
subject (someone) to military training exercises.