How to Use "fruitful" with Example Sentences

1. The possibilities for fruitful collaboration between the two countries are obvious enough .
2. Juvenile rants in the blogosphere replace fruitful human contact .
3. By tiering members by net worth , claessens thinks conversations will be even more fruitful .
4. The hunt has been fruitful .
5. The marriage between physics and mathematics has been a happy and fruitful one over many centuries .