It's only common courtesy for me to check up on him, right?

问候他只是一般礼节对么？

Still, I believe we should have a little common courtesy.

不过，我相信我们应该有一点共同的礼貌。

It would be common courtesy to return their hospitality.

【common】对他们的好客作出回应是起码的礼节。

' She had stared at them both, muttered something about 'common courtesy' and then left the room.

’她盯着他们俩看了看，咕哝了几句“一般礼貌” ，然后离开了房间。

If you're attending a meetingit's common courtesy to the person

.如果你要参加会议，这是对人的普遍礼貌.

I am going to call her tonight and have a little talk with her about common courtesy and I'm sure that you'll get an e-mail tomorrow morning.

我今晚就给她打电话，并好好和她谈谈起码的礼貌，我保证你明天早上会收到电子邮件的。

Also called affiliative or non-enjoyment smiles, these ones usually have no teeth, don't reach these eyes, and are used to convey common courtesy and friendliness rather than genuine happiness.

社交性：也称为亲和性或非享受性微笑，这些微笑通常没有牙齿， 也不会触及这些眼睛，用于传达普通的礼貌和友善， 而不是真正的快乐。