to two times the amount or degreehaving been turned down before, he is twice shy about making any more marriage proposals
having been turned down before, he is twice shy about making any more marriage proposals
double, doubly, twofold
in the 12th century
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。