英语单词“have something at one's finger fingertips”的翻译、意思、用法、释义-英汉词典

单词	have something at one's finger fingertips
释义	have something at one's finger fingertips1.■对某事了如指掌，精通(或熟悉)某事2.■就在某人手头的，随时可供使用的
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