她以公司禁止讨论诉讼为由拒绝进一步评论此事。

She declined to comment further, saying that as a policy the company doesn't discuss litigation.

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他以案子还在审理中为由拒绝进一步的评论。

He declined further comment on the grounds that the case was sub judice.

《柯林斯英汉双解大词典》

他拒绝就这项决定的日期做进一步的评论。

He declined to comment further on the date of any decision.

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