once a ditch long
曾经一沟长
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Once a great river had flowed through the city, but the water had long since vanished, and it was now only a wide ditch of grey dust.
城里曾经有一条河，但河床早已干涸，只剩下一条宽宽的灰色土沟。
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