两个陷入流沙的人是不可能互助的。
To settle loose bed, quick sand and ingress of groundwater are trouble some problems during coalmine construction.如何解决煤矿建井中的松散层、流沙和地下渗(涌)水是目前建井工程中的棘手问题。
I'm slowly sinking in the fast lake of quick sand, a bottomless pool, I wish I could crawl into a rock and sleep forever.我慢慢地陷入了无边的流沙湖中,一个无底的深渊。我只希望可以在岩石下长眠。