How to Use "trainer" with Example Sentences

1. How to meet my personal trainer is a problem .
2. Samantha nolan is a neighborhood watch trainer in washington .
3. As a former dolphin trainer , I have seen dolphins placed on time-outs occasionally respond with the marine mammal version of a perfect fit .
4. A personal trainer can be expensive , but well worth the investment .
5. Meanwhile , fitness trainer dong ying has had good luck .