an unrelenting grimness of tone语气的严厉无情
They had time to mull over the grimness of their situation.他们有时间仔细考虑严峻的形势。
英汉双解词典包含368430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。