octagonal [ɑkˈtæɡənəl]

例句:

• The room was octagonal.
  这间房是八角形的。
  
• This book is one of an octagonal money.
  这书是八角钱一本.
  
• Corridors are dotted by windows of various shapes - square, round, hexagonal and octagonal.
  形态各异的窗户点缀在走廊上,有方形, 有圆形, 有六角形,也有八角形.
  
• The octagonal enclosure through the gate houses the tomb and mosque of a nobleman, Isa Khan.
  来自WSJ
• His octagonal tomb, thought to be the oldest major building in Lodi Garden, sits on a raised platform.
  来自WSJ
• The awkward half-octagonal dining room became a far more pleasing half-circle; space was found nearby for a handsome black bar.
  来自WSJ