讲解:人们å¾å¾ä¹ æ¯äºèºæ¯å®¶ç¹ç«ç¬è¡çåæ´¾ï¼å´é²æ人æ¢è®¨ä»ä»¬æªå¼è¡ä¸ºæ¨¡å¼çæå ãå½±çãé»å¤©é¹ ãæ·±å ¥ææäºèºæ¯å®¶çç²¾ç¥ä¸çï¼ç çæ§å°å±ç°äºä¸ä¸ªèºæ¯å®¶ä»æ£å¸¸å°ç«ççç»è¿ï¼äººæ§ç纷ç¹å¤æä¹éä¹åç°ï¼ä»¤äººæ·±æã