make believe with the intent to deceive
同义词：feign??/??sham??/??pretend??/??affect
hide under a false appearance
同义词：cloak??/??mask
behave unnaturally or affectedly
同义词：pretend??/??act
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。