武器必须能防身，并经过训练。
有一幅有北极熊图像的告示牌告诫游客不要在没有武器的情况下外出，并建议游客使用杀伤力巨大的猎枪作为防身武器。
An image of a polar bear on a sign warns visitors never to leave the settlements unarmed, and recommends a high-powered hunting rifle as an appropriate weapon for self defence.
恰恰相反，你的安全取决于你的习惯、态度和活动。你也要学习将手头工具变为强大防身武器的知识。
Rather, your safety lies in your habits, attitudes and activities. It is also learning what handy tools you can convert into powerful weapons for your protection.
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