经过一番仔细调查
After some careful investigation
以上为机器翻译结果，长、整句建议使用 人工翻译 。
之后经过一番仔细调查，知道这其实是误会一场，所以特地前来向先生说明原因并向您道歉，我们这就撤销包围，不便之处还望先生原谅。
Later we made a close investigation and then knew it was a mistake. Therefore, I come here to explain and apologize to you. We will retreat immediately. Beg your pardon for any inconvenience.
youdao
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