No, Mr. Collins, we have not an iota of proof in writing.

不, 柯林斯先生, 我们一点儿书面证据也拿不出来.

辞典例句

The surface, said Cheng Siwei, if not an iota of harm.

表面看来, 成思危如是说, 好像并无丝毫危害.

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