Some of us always spend Sundays aimlessly.
We can seldom derive profits from the valuable time of Sundays.
This is indeed a great pity.
Though Sundays are set aside as a day for rest, we must make good use of them.
We know that our school lessons are usually not sufficient.
We should often utilize Sundays to read reference books.
Only in this way, will we increase our knowledge.
Besides, we must be engaged in sports or outing so as to strengthen our bodies.