“®ŽŒƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
open (transitive) =
1. ‚ ‚¯‚é
2. “ü‚é ‚Í‚¢‚é
3. ‚Ü‚Â
4. Œ¾‚¤ ‚¢‚¤

ƒŒƒxƒ‹4. •ύX
SDAL“‡‰pŒêŠwZ