adj.难掌握的；难琢磨的；感觉不到的；摸不着的 英英释义： impalpable[ im'pælpəbl ]adj.incapable of being perceived by the senses especially the sense of touch同义词：intangibleimperceptible to the senses or the mind"an impalpable cloud"; "impalpable shadows"; "impalpable distinctions";