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