在该项新研究中，参与调查者被问及其幸福程度；面谈者当面或之前按照照片把他们的相貌划好等级。

In the new study, participants were asked about their levels of happiness; their looks were rated by interviewers face-to-face or from photos.

youdao

好幸福的照片，处处透着快乐的气息！

What happy pictures. everywhere the sound of happiness!

youdao

好幸福的照片，处处透着快乐的气息！

What happy pictures. everywhere the sound of happiness!

youdao