operate名词形式是operation，operation的意思是操作。

例句：

1.The rescue operation began on Friday afternoon.

救援行动于星期五下午开始。

2.Charles was at the clinic recovering from an operation on his arm.

查尔斯的胳膊动了手术，正在这家诊所进行康复治疗。

3.Until the rail links are in operation, passengers can only travel through the tunnel by coach.

在铁路连线开通之前，乘客只能乘坐长途客车穿越隧道。

4.There are three ski lifts in operation.

有3台滑雪缆车在运行。