?严重衰退
slump of disastrous proportions 严重衰退 suffer from such a disastrous calamity 遭此大难 very disastrous earthquake 破坏性地震 .
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。