“®ŽŒƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
open (transitive) =
1.
‚»‚¤‚¶‚·‚é
2.
•·‚
‚«‚
3.
‚ ‚¯‚é
4.
‚¤‚½‚¤
ƒŒƒxƒ‹4.
•ÏX
SDAL“‡‰pŒêŠwZ