Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
period of time =
1. K
2. _
3. Šú
4. •

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ