确保孩子的背包上没有他的名字等等，避免拐骗者能喊出他的名字。
Insure your child does not have their name on their backpack, etc., as this would enable a potential abductor to call out to the child by name.
根据路程的远近适当选取一些装备，比如背包、睡袋、水壶、帐篷、太阳镜、指南针、地图等等这些都是必不可少的。
According to the distance of the appropriate selection of some equipment, such as backpack, sleeping bag, kettle, tents, sunglasses, compass, maps and so on are essential.
根据用途的不同，分为电脑双肩包、运动双肩包、双肩书包、束口绳包、军用背包、登山包等等。
According to different purposes, divided into computer bag, sports bag, backpack, bag, backpack beam rope, climbing bag and so on.
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