bivy sack
常见例句
- Unlike my Half Dome epic, we were better prepared sleeping wise. We both had a synthetic bag, a bivy sack and a sleeping pad. The sleeping pads were used to protect the contents of the haul bag.
我们准备较好的睡觉方式，不像我去爬半圆顶的壮烈，我们都有露宿袋及睡垫，睡垫是用来保护拖包内的东西。
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