wearing a pleasing and gracious face 和颜悦色

“和颜悦色”，汉语成语，意思是和蔼可亲的面色，形容态度温和亲切。可以翻译为“with a kind and pleasant countenance，wearing a pleasing and gracious face”等。

例句：

老师和颜悦色地回答了学生们的问题。

The teacher answered kindly and affably the questions put forward by the kids.|

他和颜悦色地说：“我并不是想扫你的兴。”

'I didn't mean to upset you,' he said mildly.