Good customer relations require courtesy, professionalism and effective response.

良好的客户关系需要礼貌、专业和有效的回复。

《柯林斯英汉双解大词典》

Domestic noises may perhaps be controlled by forethought and courtesy, and industrial noises by good planning and technical improvement.

家庭噪音或许可以通过事先筹划和礼貌加以控制，工业噪音可以通过良好的规划和技术改进加以控制。

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Be respectful: show courtesy to those who, in good faith, misunderstand or disagree.

尊重他人：礼待善意的误解与分歧。

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The reality for many Iranians is stress, a coarsening of courtesy and good manners and financial insecurity (and a sharp rise in bounced cheques).

ECONOMIST: Iran

So the courtesy and simple good manners of more old-fashioned letter-forms are restored to our correspondence.

BBC: A Point of View: Mourning the loss of the written word

If you do miss a payment, contact the creditor as soon as possible and ask if they would be willing to remove the late payment from your account as a courtesy and gesture of good will.

FORBES: 10 Steps to Repair, Rebuild, and Protect Your Credit