patch of reef造句

Hovering above the aqua sea and patches of reef that seemed giant amoebas before landing on a concrete platform.
If the algae that colonises the bare patches of reef is toxic, smaller fish that return to the area would eat it.
Antonio Azuela, attorney general for environment protection, said Monday that the cruise line has agreed to appoint a committee to study the damaged patch of reef near the resort city of Cancun, the government news agency Notimex reported.
It's difficult to find patch of reef in a sentence. 用patch of reef造句挺难的