英语翻译

问题描述:

英语翻译
(中文是想要表达的意思,翻译不必和中文完全一样)
中文部分:
虽然我知道答案,但无法用英文来表达.真郁闷.
我的翻译:
Feel so sadly that I can't answer the question in English (and lost mark) even I know the answer.

应该是Although I know the answer,but can't use English to express.Really depressed.