MY VOCAB PRACTICE:

1. A retrorocket should be in the armory of every nation in-order to be adequately defend their citizens from any surprise missile attack.
2. The new minimum wage bill that was just signed by the president, is retroactive to May 2015.
3. Being retrospective in nature is very prerequisite for a brighter future, only if one dwells on the lessons learnt.
4. Observing the retrograde motion of a car wheel from a distance is a mirage.