a sixteen-tracktape recorder的用法和样例：
- The book is easy enough for a sixteen ?year-old child to read.
- A sixteen year old boy worked on his grandfather's horse farm.
- The six year world tennis champion was dethroned by a sixteen year-old Brazilian.
- He bought a new cassette recorder.
- He pulled abruptly into another try at a sixteen point vertical slow roll, calling the points out loud.
- The BBC often plays a record to fill in.