荒漠沙海，孤舟独行，心随梦远。一线天馒头穴

　　The sun beats down mercilessly on all those who cross the Sonoran Desert between Mexico and the United States. Aside from the few people who live here, it’s the poorest of undocumented immigrants that make the crossing, who have no choice but to take this extremely dangerous route, followed by border guards both official and self-appointed. The horizon seems endlessly far away ... (展开全部)