1. dou：ㄉㄧㄡdiu丟 | ㄉㄡdou都,x,陡,豆 | ㄉㄨㄥdong東,x,懂,洞
2. duan：ㄉㄨㄥdong東,x,懂,洞 | ㄉㄨdu都,毒,堵,肚 | ㄉㄨㄢduan端,x,短,段
3. ding：ㄉㄧdi低,笛,抵,第 | ㄉㄧㄥding叮,x,頂,定 | ㄉㄧㄡdiu丟
4. dan：ㄉㄞdai呆,x,逮,貸 | ㄉㄢdan單,x,膽,蛋 | ㄉㄤdang當,x,黨,蕩
5. x：exchange; 交换
6. x：change; 变址
7. x：sdsc图像工具的; Avs X图像文件格式〖后缀〗
8. x：transmission; 传输
1. 英语字母表的第24个字母
X is the twenty-fourth letter of the English alphabet.
2. （用于度量单位间）表示“乘以”
When writing down the size of something, you can use x in between the measurements to mean 'by'.
e.g. The conservatory measures approximately 13ft x 16ft.
温室的大小大约是13英尺乘16英尺。
3. （用于表示不知道或不愿透露的人名）某，X
X can be used to represent the name of a person when you do not know their real name, or when you are trying to keep their real name a secret.
e.g. ...Dr. X.
某医生
4. （用于表示不确定或无需指明的数量）
You can use X or x to refer to a number or amount when you do not know exactly how much it is, or when this information is not important.
e.g. You can only make X amount of dollars a year.
你一年只能赚那么多钱。
5. （用于书信或书面留言末尾，表示亲吻）
x is used to represent a kiss at the end of a letter or written message.
6. （用于在地图上标明确切方位）
People sometimes write X on a map to mark a precise position that they want to refer to.