His bona fides was questioned.
人家怀疑他的诚意.
《现代英汉综合大词典》
His bona fides are unquestionable.
他的诚意不容置疑.
辞典例句
In doing this, it requires your bona fides and devotion.
做这件事需要你的真诚和投入.
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Bona fides is my first choice of making friends.
真诚是我交朋友的首选.
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Respondents must be enabled to check without difficulty the identity and bona fides of the Researcher.
被访者必须能够毫无困难地检查研究人员的身份和真实性.
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