countless /ˈkaʊntləs/ adjective Learner's definition of COUNTLESS
: too many to be counted : very many无数的；数不尽的 -
He has written countless [=numerous] magazine and newspaper articles.他给杂志和报纸写过无数篇文章。
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There are countless reasons why that would not be a good idea.无数的理由说明为什么那不是个好主意。
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I've been there countless times.我去过那儿无数次了。