Blue shark skin的用法和样例：
- People hunt sharks for sport, food, medicine and shark skin.
- It is believed that the suit creates less water resistance as it moves, behaving more like a shark skin than a human skin.
- Recently, scientists rolled out swimsuit of a kind of newfangled, formal name is " fast skin " , byname is called " shark skin " .
- In this paper,collagen peptide powder from the shark skin was prepared by some biochemistry techniques including proteinase hydrolysis,spray torrefaction.
- The most well-known sharks are the great white shark, whale shark, blue shark and hammerhead shark.