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独立不定詞
to tell (you) the truth
to be frank with you
本当のことを言うと
率直に言えば
to say the least (of it)
控えめに言っても
so to speak [say]
言わば
to begin [start] with
まず第一に
確かに
to be sure
strange to say
奇妙な話だが
needless to say
to make matter worse
not to say A
言うまでもなく
さらに悪いことには
Aとは言わないまでも
to do A justice
Aを公平に評価すると
to say nothing of A
not to speak of A
Aは言うまでもなく
not to mention A