three的数字形式是什么呢?

three的数字形式是:3three[英][θri:][美][θri]num.三; 三个; 第三(章,页等); n.三岁; 三个人[东西]; 三,三个; adj.三的; 三个的; 例句:The short-term training class has been run three times.短训...