Iran is sure that diplomatic initiatives will result in a favorable outcome despite the diplomatic wrangling.

尽管存在外交争端，但伊朗确信外交举措将取得有利结果。

Your unwavering commitment, sage advice, and unwavering support were instrumental in securing a favorable outcome, and I am eternally grateful for your help.

你们坚定不移的承诺、明智的建议和坚定不移的支持有助于确保取得有利的结果，我永远感谢你们的帮助。