1、字母英语：letter，英 [?let?(r)] 美 [?let?r]。
2、你的工作是把他们按字母顺序分组，然后按数字顺序排序。Your job is to group them by letter and put them in numerical order.
3、农场主布朗的牛都烙上了字母“B”的印记。Farmer Browns cattle are branded with the letter B.