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