to speak forcefully and with justice (idiom); to argue with the courage of one's convictions
理直气壮地说个不停。有时也用于讽刺。[反]理屈词穷。
理直气壮的样子。形容自以为理由很充分,说个不休。
清·梁启超《关税权问题》:“今者外人之以排外相诬者,既振振有词,其乌可更为无谋之举,以授之口实也。”
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