锤子的英文是 hammer。关于它的来源，根据史料记载，人类早在新石器时代就已经开始使用锤子了。最初，锤子用来击打金属和石头，用来打造工具和武器。随着技术的发展，锤子也发生了演变，并且在建筑和家装等领域中广泛使用。
下面是一些英文例句：
I need a hammer to hang this picture on the wall.
The carpenter used a hammer and nails to build the bookshelf.
Be careful with the hammer, it can cause serious injuries if used improperly.
The hammer is a simple but versatile tool that has many uses in daily life.
The blacksmith's hammer rang out as he shaped the hot metal on the anvil.