曲笔

qūbǐ

(1) [a distortion of the facts(by an official historian)]∶古指史官因顾忌而不据实记载

南史不曲笔以求存。 --《后汉书·臧洪书》

(2) [deliberate digression in writing]∶写文章时为了生动而不直接描写