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