They also ask questions like Where do you come from? and Where do you live?.
他们也会问“你从哪儿来?”,和“你住在哪儿?”这样的问题。
Those planning a trip to remote areas, or intending to live in countries where drinking water is not readily available, should know about the various possible methods for making water safe.
那些计划去偏远地区旅行,或在饮用水不现成的国家居住的人,应该知道如何使水适于饮用的各种办法。