“®ŽŒƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
do (work) =
1.
‚ ‚
2.
i‚µ‚²‚Æ‚ðj‚â‚é
3.
‚Í‚¶‚ß‚é
4.
‚©‚¦‚·
ƒŒƒxƒ‹4.
•ÏX
SDAL“‡‰pŒêŠwZ