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