Think about what you'd need to include if you were going to explain your research project tosomeone with general or casual knowledge about the subject, like your parents.
It could also signal that the subject is more likely to get divorced than someone with a big smile for the camera.
它也许是这个严肃的主角相对于那些在照相机前脸上有着大大笑容的人来说更容易离异的一个信号。
3
Think about it: if you believe someone is out to get your job, how likely are you to be conciliatory with that person about any subject and in any setting?