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