“遗憾地”的英语？

我们遗憾地通知您，您将要无限期地在家待岗。We regret to inform you that you are being furloughed indefinitely.他摇了摇头，遗憾地对我笑了笑。He shook his head and gave me a rueful smile.他遗憾地摇了摇头。He shook his head regretfully....