不脛而走bù jìng ér zǒuspread far and wide;get round fast; go (/go off/sell) like hot cakes;spread (/run) like wildfire
? 世界廣漠無垠之場。有一大動物焉。不脛以走。不翼以飛。(李六如《六十年的變遷》57) In the extensive and boundless range of this world there exists a large animal which possesses no feet but walks,and has no wings but flies. 不脛而走bù jìnɡ ér zǒu脛：小腿。沒有腿但跑得很快。比喻事物不用推廣，也能迅速傳播。get round fast, speak like wildfire, spread far and wide |