These poor folks usually have to start all over again from scratch in terms of learning how to ski even the bunny hills.

这些可怜的家伙往往只能从头开始再学一遍如何在小斜坡上滑雪。

youdao

If we returned, we would have to start from scratch and go through everything we went through in Iran, all over again.

BBC: NEWS | South Asia | Moscow's Afghan war: The refugee's story