Presenting Your Opinion

Specifically: Corruptions in government sectors, specifically in countries like India and Bangladesh, is another hindrance in the overall progress.
Of course: Of course, the government has a responsibility to support those older people. But that does not mean that children of such senior citizens are free from their own responsibilities towards their aged parents.
In particular: In particular, there is almost no university in such underdeveloped areas and a large number of students, due to this, move to the city areas each year.

Presenting Contrast:

Despite: Despite its immense benefits, we should be wary of its usages in our daily life.
In spite of: In spite of a remarkable progress in recent years, women are still suffering from social discriminations in many developing countries.
By contrast: By contrast, knowledge gained from travelling and from real life experiences has a greater impact on our future course of actions in life.
Alternatively: Alternatively, the government can impose laws to control the market price of most essential commodities.
Another opinion could be: Another option could be restricting the number of children a family can have.
On the other hand: On the other hand, owning a car is expensive as it requires parking, fuel, servicing, maintaining and yearly renewal costs.
Still: Still, strictly controlling the number of children a family can have is not a feasible solution.
However: However, many destitute families rely on the earning those young children bring to the family.
Although: Although implementing this would require a huge sum of money, this, in my opinion, is the most optimal solution.
Even though: Even though their arguments are somewhat convincing to listen to, in reality, the scenario is quite the opposite.
But: But, the investment in trade and finance alone does not guarantee a steady growth of the GDP for this country.