“®ŽŒƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
understand =
1.
‚Ì‚Ú‚é
2.
‚í‚©‚é
3.
‚ ‚¯‚é
4.
Œ¾‚¤
‚¢‚¤
ƒŒƒxƒ‹4.
•ÏX
SDAL“‡‰pŒêŠwZ