following a prescribed pattern in speech or action;scrupulous and methodical
一板一眼yī bǎn yī yǎn
板、眼：指民族音樂(lè)或戲曲曲調(diào)中的節(jié)拍。一板一眼指二拍子。比喻言語(yǔ)、做事有條不紊；也比喻做事死板，不靈活。following a prescribed pattern in speech or action, step by step, scrupulous and methodical