敲釘鑽腳 Save Sign in to save words Simplified: 敲钉钻脚 qiāodīngzuānjiǎo ㄑㄧㄠ ㄉㄧㄥ ㄗㄨㄢ ㄐㄧㄠˇ to make doubly sure (idiom) Character by character 敲(qiāo)hit 釘(dīng)nail 鑽(zuān)drill 腳(jiǎo)foot A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0