You know,maybe I'll put together some photos of Grandpa as a welcome present.
我说,或许我把爷爷的一些照片组合起来,作为欢迎他的一份礼物。
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。