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请输入您要查询的英文单词：
单词
know all there is to know about sth
释义
know all there is to know about
sth
approving
to know a lot about asubjectoractivity, or be very good at it
对某科目很擅长；对某活动很了解
#https://dictionary.cambridge.org//dictionary/english-chinese-simplified/know-all-there-is-to-know-about-sth##