pursue

1 - Since the discovery of radium early in the 20th century, there has been a pursuit to attain, contain, and use the vast amounts of energy that is released by this element.

2 - More than 85 percent of men still believe in the institution of marriage, with 1 out of 3 men stating that they will not pursue a relationship unless they feel that the woman has wife potential.

3 - The collection of foreign intelligence, which is the pursuit of a special kind of information, is an indispensable service for any government having even the most elementary international associations.

4 - The proportion of over-50s using the internet to shop, chat, pursue hobbies and study has doubled.

5 - The United States currently does not have an extradition treaty with China, but there are other mechanisms available to pursue fugitives.