Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
period of time =
1. –ò
2. “S
3. Šú
4. ’…

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ