3、A five-virtue family refers to one that is outstanding in such five aspects as Being law-abiding, diligent in study, within Birth control limit, harmonious and thrifty as well as industrious
4、After all, we are one year older, so we should pick up our childhood happiness and romance as early as possible, and strive to be a good student who is diligent in studying. Even the lenses on the nose can be thicker and thicker.
2、I was very diligent in studying this course.
1、My sister is diligent in studying English.