词义猜测 — 英语填空题
题目
阅读下面句子,根据上下文中的定义与结果线索,猜测单词 'invaluable' 在句中的中文含义,并在横线上填入最恰当的两字中文词语:After the fire, the recovered manuscript proved invaluable—that is, so precious that no amount of money could replace it—and scholars regarded it as a national treasure. 含义:___