"十四"的英语是"fourteen"，来源是由"four"和"-teen"组成。 "-teen" 是数字的后缀，表示十几。例如:
Fourteen days later, the package arrived. (14天后，包裹到达了)
I was fourteen when I got my first job. (我14岁时得到了我的第一份工作)
"十五"的英语是"fifteen"，来源是由"five"和"-teen"组成。 "-teen" 是数字的后缀，表示十几。例如:
I have fifteen minutes before my next meeting. (我有15分钟在我下一个会议之前)
I was fifteen when I learned to drive. (我15岁时学会驾驶)