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obviously; as we all know; needless to say; of course; it goes without saying
言うまでもなく彼が適任だ。
Needless to say, he is the right person.
その結果は言うまでもなく予想通りだった。
The result was, needless to say, as expected.
言うまでもなく健康管理は大切だ。
Of course, taking care of your health is important.