know yourself 認(rèn)識(shí)你自己 認(rèn)識(shí)你自己（歌曲名，Know Yourself）know your grandparents [動(dòng)力與電氣工程]了解你的祖父母know you 認(rèn)識(shí)你 懂你know without a doubt 確定明白know what's what know what 知道什麼know very well 熟知know to your cost [航空、航天科學(xué)技術(shù)]由於付了代價(jià)才know thyself 認(rèn)識(shí)你自己 了解你自己know through and through 知根知底know the score 了解情況；（尤指）了解問題的癥結(jié)。know of 知道，了解…；聽說過…know nothing at all 一無所知know nothing about 一無所知know nothing adj. 不可知論的 n. 一無所知的人know no bounds 無限；不知限量know more about 知道更多 了解更多know more 了解更多know little 知之甚少know it all