成语名称:心中有数:know what\'s what(have a clear idea; have a head for figures)英语: know what\'s what(have a clear idea; have a h...
心中有数 词语解释心中有数[ xīn zhōng yǒu shù ]⒈ 对于事情比较了解,处理起来已有把握。英know what\'s what;引证解释⒈ 谓对于事情心里有大概的了解或处理起来有一定的把握。引冯德...