But we found nearly half on them were mouldy. We can't accept them anyway.
但是我们发现差不多一半发了霉。无论如何我们不能接受。
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。