1. I was apprenticed to a plumber when I was fourteen. 我14岁时给一个管子工做学徒。
2. When he grew older, William Smith taught himself surveying from books he bought with his small savings, and at the age of eighteen he was apprenticed to a surveyor of the local parish. 当威廉·史密斯长大一些,他用自己的一点积蓄买了一些书,自学测量学,并且他18岁时在当地教区做了一名测量师的学徒。