A purple hammer which glows in the dark is still useless if it can't effectively put nails into wood.

一个在黑暗中可以闪闪发光的紫色锤子，如果不能够有效的把钉子钉进木头的话，它仍然是毫无用处的。

youdao

A short-handled hammer, usually with a cylindrical head of wood, used chiefly to drive a chisel or wedge.

木槌一种手柄较短的锤子，通常具有木制的圆头，主要用以敲击凿子或敲击契子。

youdao

To build something of wood, you usually need a hammer.

用木头做东西，你通常会需要锤子。

youdao

To build something of wood, you usually need a hammer.

VOA: special.2009.09.20

Armed with a wood chisel and a hammer, Sherman spent four hours carving a hole in the bottom of the plywood-and-fiberglass hull, which was now the submerged boat's top deck and visible to any passing vessels.

CNN: Shipwreck survivor recounts drama on high seas

Armed with a wood chisel and a hammer, Sherman spent four hours carving a hole in the bottom of the plywood-and-fiberglass hull, whch was now the submerged boat's top deck and visible to any passing vessels.

CNN: Shipwreck survivor recounts drama on high seas

An American firm, 3D Systems, used one of its 3D printers to print a hammer for your correspondent, complete with a natty wood-effect handle and a metallised head.

ECONOMIST: A third industrial revolution | The