The factory has worked successfully since its trial run last year.工厂自从去年试运行以来，生产很顺利。Japan's space ambitions have had a set-back after the failure of an engine in a test run.一次试运行中的引擎失灵使日本的太空梦想遭受了挫折。We encountered one small problem during the trial run.我们在试运行中，遇到了一个小问题。