出操的英文：
drill; excercise

drill是什么意思：
n. 钻头，钻孔机；操练，演习；条播沟
v. 钻（孔）；钻探；操练，演习；条播

The worker was drilling.
此工人在用钻孔机钻孔。

Drilling is performed with a rotating tool called a drill.
钻孔是用一个称为“钻头”的旋转刀具进行的。

Can you teach me the drill?
你能教我正确的作法吗？

drill type burner
钻孔型火口

The team is still drilling.
钻探队还在钻探。