N a practice or rehearsal; trial run 试演
We considered posting this one as a competition, but there was no time for a dummy run …
我们认为可以把它作为一部影片，但是我们没有时间去排练。
Dummy is a marvelous option for doing a dry run before risking an actual disk.
dummy是一个了不起的选项，可以用它来先进行一次“排练”，然后在实际的盘上冒险。
At least one trial run with a dummy failed, with the weight crashing through the net.
至少有一次试跳失败了，因为试跳用的假人撞破了网。
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