It took several more years to learn how the system worked.
研究系统运作又花费了数年时间。
The practice showed that the system worked well on site.
实践证明该系统现场应用效果良好。
It was proved that the system worked well and attained the design request through practice.
实际应用证明，该系统运行良好，达到设计要求。
The system worked great, and the database connection issues went away.
这个系统工作得很好，数据库连接问题再也没有出现过。
The system worked great, and the database connection issues went away.
这个系统工作得很好，数据库连接问题再也没有出现过。
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