不敢越雷池一步 (bù gǎn yuè léi chí yī bù) | Meaning: dare not go one step beyond the prescribed limit | Chinese Idiom with Pinyin & Origin

to mark time (military) · to make no headway原地踏步yuán dì tà bù

stuck in the old ways (idiom); refusing to acknowledge new ideas · stagnating and conservative故步自封gù bù zì fēng

timid and overcautious · meticulous to a fault · cautious and meticulous · timorous and punctilious · prissy · overcautious谨小慎微jǐn xiǎo shèn wēi

timid; cowardly; chicken-hearted怯懦qiè nuò

dare not go one step beyond the prescribed limit