Who knows but maybe there's an Olympic champion right

here in this auditorium this afternoon?

1.know동사가 that절을 목적어로 받은것 맞나요?

2.그리고 but maybe는 어떻게 해석해야하나요?ㅜㅜ

The secret of sprinting is to pick those knees high and lean

forward and reach out.

3. (to) lean ~ , (to) reach out 맞나요?