day pack

基本解释

You will need to have good hiking boots, a day pack, raincoat, lunch, water, personal first aid kit and a back up torch.
你需要有一双良好的登山鞋、背包、雨衣、午餐，水、急救箱和备用电筒（估计要防水的）。
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This 50-liter travel pack includes a removable day pack that's hydration ready for rigorous trails and a variety of outdoor activities.
这50升的旅行装包括一个可移动的一天包的水化严格的小径和各种户外活动的准备。
The other item you always feel is your day pack, so I am very lucky to have an assortment of Salomon packs that fit great and allow me to run and hike in comfort.
另外一个很重要的东西是拟定背包，所以，我非常幸运的拥有一个很贴身能让我舒舒服服奔跑和步行的所罗门的背包。

We meet,we talk about what the hike is for the day, and then they pack their backpacks and we head out the door - no matter what the weather."
Soldiers were expected to be able travel thirty kilometers per day, in full pack.
士兵一天可以行进30千米，在全副装备的情况下。
耶鲁公开课 - 新约课程节选

But, as I'm learning on this three-day pack trip into northwest Yellowstone National Park, the opposite is true: I have no idea how to ride.
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