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Žc”O
understand =
1. ‚í‚©‚é
2. iƒMƒ^[‚ðj‚Ђ­ i‚¬‚½‚ ‚ðj‚Ђ­
3. ‚‚­
4. ‚ ‚炤

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ƒŒƒxƒ‹4. •ÏX
SDAL“‡‰pŒêŠwZ