问题描述：
英语翻译
1 a major concern
2 to the best of my knowledge
3 as far as I am concerned
4 what i want to express here is that
5 it goes without saying that
1 a major concern
2 to the best of my knowledge
3 as far as I am concerned
4 what i want to express here is that
5 it goes without saying that
问题解答：
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