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