He has a contented smile.

他有一丝满意的笑容。

There was a contented smile on his face.

他脸上露出了满意的微笑。

The lady looked at me with a contented smile.

那位夫人带着满意的微笑看着我。

The warm fire, twinkling Christmas lights and laughter from family brought a contented smile to my face.

看着温暖的炉火、闪烁的圣诞灯光，听着家人们欢声笑语，我脸上露出了满意的微笑。

You took me to school on my first day along with mom and dad, and you wore a contented smile on your face like a proud parent – just like you do each time we're together.

开学的第一天爸妈没能来，是你牵着我的手走进校门，你同其他骄傲的父母一样，脸上挂着掩饰不住的笑容----就像我们每次在一起时那样。

A contented person, cat, smile, etc.

心满意足的人、猫、微笑等。