To be upright and unyielding; to be impartial and not give in to pressure; not to bully the weak or fear the strong.
他工作认真负责，为人处事不吐不茹，深得同事们的信任。
He is diligent and responsible in his work, dealing with matters in an upright and unyielding manner, thus gaining the deep trust of his colleagues.
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