牛津译林 模块六第二单元 M6U2 Grammar and usage语法
(2)做结果或程度状语 常以enough to 或too…to…等形式出现， 并能转换成so…that…句式。如： Liu Mei was lucky enough to receive many books from Project Hope. = Liu Mei was so lucky that she received many books from Project Hope. He was too young to lift that box. = He was so young that he cannot lift that box.