BY DEREK ROSE DAILY NEWS STAFF WRITER

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It’s been seven decades since the German concentration camp, the three-week forced march through the ice and snow, the daily deaths, the terror.

Sally Sachs can never forget – and neither can her body.

“Today I feel it. My back is broken,” said Sachs. “I don’t know what a body can take – I can’t believe that a body can take what my body took.”

Now 82, Sachs suffers from arthritis. All her siblings – three brothers and eight sisters – died in the camps