核桃木的英文：
walnut

Leather-wrapped steering wheel & shift knob
真皮方向盘真皮核桃木排档头

Walnut is a local specialty here.
核桃是当地的土特产。

The table is made of walnut.
这桌子是由胡桃木做的。

Please shell some walnuts for the cake.
请为做点心剥点胡桃仁。

She died in one of the downstairs rooms, in a heavy walnut bed with a curtain.
她死在楼下一间屋子里的笨重的胡桃木床上，那床还挂着床帷。

North American walnut tree with hard dark wood and edible nut.
北美胡桃树，有硬的黑木和可食用的果实。