NIHONGO BIJINESU KAIWA æ—¥æœ¬èªžãƒ“ã‚¸ãƒã‚¹ä¼šè©± ä¸ç´šç·¨ï¼šæœ¬æ–‡å†Š (æ—¥ç±³ä¼šè©±å¦é™¢, 1998)