like: 难兄难弟 → →
难兄难弟 [nan2 xiong1 nan2 di4] ☊ 
lit. hard to differentiate between elder and younger brother (idiom) ☊ 难兄难弟 [nan4 xiong1 nan4 di4] ☊ brothers in hardship (idiom) ☊ 难兄难弟 [nan2 xiong1 nan2 di4] ☊ lit. hard to differentiate between elder and younger brother (idiom) ☊ 难兄难弟 [nan4 xiong1 nan4 di4] ☊ brothers in hardship (idiom) ☊