排水系统 的中文句子和英文句子

排水系统已经老化了。

The drainage system has been aged.


这座城市甚至还敷设过排水系统，因为在窄窄的街道底下发现了许多陶土制的管道。

The city was even equipped with a drainage system, for a great many clay pipes were found beneath the narrow streets.