表示åæ°æ¶ï¼ååé¡»ç¨åºæ°è¯ï¼åæ¯ç¨åºæ°è¯ãååå¦æ¯1以ä¸ï¼åæ¯é¡»ç¨å¤æ°å½¢å¼ã
1ãè±è¯åæ°
å¨å¸¦åæ°ä¸ï¼æ´æ°ä¸åæ°ä¹é´é¡»ç¨andè¿æ¥ãå¦ï¼5 1/2 è¯»ä½ five and a half;7 2/5 è¯»ä½ seven and two fifthsãåæ°ç¨ä½åç½®å®è¯æ¶ï¼æ³¨æä¸ååæ³ä¸è¯»æ³ï¼a one-third mile ä¸åä¹ä¸è±é(ç¨oneï¼åæè¿å符)ã
2ãè±è¯
æ¯å°æ¬§è¯ç³»-æ¥è³æ¼è¯æä¸çè¯è¨ï¼ç±26个åæ¯ç»åèæï¼è±æåæ¯æ¸æºäºæä¸åæ¯ï¼æä¸åæ¯æ¸æºäºå¸è åæ¯ï¼èå¸è åæ¯åæ¯ç±è å°¼åºåæ¯æ¼åèæ¥çãè±è¯æ¯å½é æå®çå®æ¹è¯è¨ï¼ä½ä¸ºæ¯è¯ï¼ï¼ä¹æ¯ä¸çä¸æ广æ³ç第ä¸è¯è¨ï¼ä¹æ¯æ¬§ç以å许å¤å½é ç»ç»ä»¥åè±èé¦å½å®¶çå®æ¹è¯è¨ï¼æ¥æä¸ç第ä¸ä½çæ¯è¯ä½¿ç¨è 人æ°ï¼ä» 次äºæ±è¯å西ççè¯æ¯è¯ä½¿ç¨è 人æ°ã
3ãè±è¯è¯æ³
æ¯é对è±è¯è¯è¨è¿è¡ç 究åï¼è±è¯è¯æ³ç³»ç»å°æ»ç»å½çº³åºæ¥çä¸ç³»åè¯è¨è§åãè±è¯è¯æ³çç²¾é«å¨äºææ¡è¯è¨ç使ç¨ã