have nothing to hang on to above and no solid ground to rest one's feet on below be held in suspense not to be on solid ground touch neither the sky nor the ground -- be suspended in midair
上世纪用英文怎么说
上世纪初用英文怎么说
上世纪末用英文怎么说
上丘用英文怎么说
上丘脑用英文怎么说
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