Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
period of time =
1. Í
2. Šú
3. ŽÒ
4. ‘¼

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ