cannot be imagined; dreadful to contemplate; 不堪设想
may be rated as a good piece of writing or a fine work of art; 堪称佳作
cannot bear to look back; 不堪回首
cannot withstand a single blow; collapse at the first blow 不堪一击
Kan Zhong 堪仲
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)