One side of a coin is called 'heads' and the other side is called 'tails'.
硬币的一面叫做"公",另一面叫做"字"。
Keeton put magnets on the heads of his pigeons.
基頓把磁鐵放在他的鴿子的頭上。
Actually I wanted to be a damsel in a tower guarded by seven dragons, and then a prince on a white horse would chop off the dragons' heads and liberate me.