1. She'll swim the races of breaststroke and butterfly stroke.

2. The next drill is just a butterfly stroke drill.

3. What are the elements of the butterfly stroke?

4. But she wants to learn butterfly stroke.

5. The butterfly stroke had not accepted as a formal event until 1958.

6. Swimming is divided into breaststroke, freestyle, backstroke,(http://) and butterfly stroke.

7. She curled her tongue and flicked it at his flesh with butterfly strokes.

8. Verdant wave a wave swept through a wave of whipped butterfly, butterfly stroke, I will secretly.

9. I am very good at swimming , for I can do butterfly stroke and backstroke.

10. Two Chinese women swimmers have already entered the 100 - metre butterfly stroke finals.

11. Daniel: OK, Mom. Can I swim now? I want to learn butterfly stroke.