with very limited knowledge and scanty information;be all by himself in some backwoods, he knows little of what is going on in the world of affairs.;be cut off from the world;be sequestered from the community and be thus poorly informed;ignorant ;

Scientists actually know little about how animals perform their navigational feats.
科学家们对动物的这种导航绝技却是孤陋寡闻的.
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