“®ŽŒƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
understand =
1.
‹‚é
‚¢‚é
2.
‚í‚©‚é
3.
‚‚©‚¤
4.
H‚ׂé
‚½‚ׂé
ƒŒƒxƒ‹4.
•ÏX
SDAL“‡‰pŒêŠwZ