Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
period of time =
1.
Ҧ
2.
Šú
3.
‹N
4.
‹æ
ƒŒƒxƒ‹3.
•ÏX
SDAL“‡‰pŒêŠwZ