Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
period of time =
1. ‹â
2. ’Œ
3. •i
4. Šú

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ