國語(yǔ)辭典春江水暖鴨先知
語(yǔ)本宋．蘇軾〈惠崇春江晚景〉詩(shī)二首之一：「竹外桃花三兩枝，春江水暖鴨先知?！贡扔魈幱谀骋画h(huán)境中，會(huì )預先感受到環(huán)境改變的征兆。如：「春江水暖鴨先知，股市從業(yè)人員對市場(chǎng)的變動(dòng)的確較一般客戶(hù)敏感?！?/span>
英語(yǔ) lit. the duck is the first to know if the spring water is warm (idiom)?, fig. an expert in the field knows which way the wind blows
? 漢典