PowerBook ªP≥o√˛´¨™∫ PowerBook ¬X•RÆy©Œ¬‡¥´æπ≥s±µÆ…°A§£Ø‡∂i§J∫ŒØv™¨∫A°C≠nªP PowerBook ¬X•RÆy∏—∞£≥s±µ°A•≤∂∑•˝√ˆ±º PowerBook°C