ÂòÉÁÖÈËÄã²»»áºó»ÚµÄ¡£¸÷Öֺ㬿ռä´ó£¬²î¼Û1Íò¶à£¬Á½Íò¡£ÄãÒ»¸öÔ±ÈÈç˵400£¬500µÄÓÍÇ®¶¼¿ÉÒÔ´òÁ½£¬ÈýÄêÓÍÁË¡£Ð¼ÓÆÂÓÍÇ®²»ÊÇÖص㡣eyesightûëÓ㬴ó¶àÊý˾»ú»¹ÊÇ¿¿×Ô¼º¡£¹¦ÄܵĻ°³µÀïÃæËùÓй¦ÄÜÓõÄ×î¶àÒ²¾ÍÊÇÒôÁ¿Å¥¸ú¿Õµ÷Å¥¡£ÄÚÊÎȷʵ²»ÈçÂí6¡£²»¹ý³µÓ²°¡£¬ÄÜ´òÄÜ¿¹¡£Èç¹ûÄã»áÈ¥ÂíÀ´Î÷ÑÇÅܸßËÙ£¬ÆÆ·£¬´ó¶¸Æ£¬Äã»á¸ÐлÕâ³µµÄ¡£ÎҵĸöÈËÒâ¼û¡£
ÉÁÖÈËÊʺÏŮʿ¿ªÂð
ÁíÍ⣬Ϊʲô˵eyesightûÓÃÄØ