Why the long face? 干嘛拉着个脸啊?怎么闷闷不乐的?
long face 长脸;闷闷不乐;不悦的脸色
What’s wrong? Why the long face? 怎么了?怎么闷闷不乐的?
Hey, Jack, why the long face? Is something bothering you?Jack,干嘛...
by the book 完全按照规章制度办事,按照规定,照章办事
go by the book 依章办事
play by the book按规定来
do something by the book按规定做某事
run something by the book 按规定管理、运营
The manager do...