其中的一个选择是睡袋套。
你第一要带的是睡袋。还可能需要再带一套保暖的衣服，以防万一天变冷时你要用。
The first thing you need is a sleeping bag. And you might need an extra set of warm clothes. You need them in case it turns cold.
你第一要带的是睡袋。还可能需要再带一套保暖的衣服，以防万一天变冷时你要用。
The first thing you need is a sleeping bag. And you might need an extra set of warm clothes. You need them in case it turns cold.
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