dummy run

Before descending on the enemy's barracks, the armed forces did a dummy run lest their plan be frustrated.

军队在突袭敌方军营前，先进行了一次演练，以免计画受阻。

The longer the state-directed flow of loans goes on, the more that exercise looks like a dummy-run.

政府引导放贷的模式持续越久，那场操作看上去就越像是一场预演。