"羊毛"用英语翻译为"wool". "木头"用英语翻译为"wood".
"Wool"是英语中用来指羊毛的通用术语。它来自古英语"weol"或"wull", 这两个词均指羊毛。
"Wood"是英语中用来指木头的通用术语。它来自古英语"wudu", 指树木或木板。
下面是一些例句：
This sweater is made of wool. (这件衬衫是用羊毛做的。)
The chair is made of wood. (这把椅子是用木头做的。)
Wool is a natural fiber that is obtained from sheep. (羊毛是从羊身上获取的天然纤维。)
Wood is a common material used in construction and furniture making. (木头是建筑和家具制造中常用的材料。)