新闻热词：“试运营”英语怎么说_词汇积累_沪江英语 - 沪江网校
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作为服务世博的重要交通项目，上海轨道交通10、12、13号线即将投入试运营。
来看Shanghaidaily的相关报道：
Shanghai's Metro Line 10 will be automatically operated with no drivers aboard within a year after it opens for trial service in mid-April. This signals China can develop its own technology for automatic subwa
