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