119. Although copper was hammered into tools
and ornaments by some early inhabitants
of North America, the smelting and casting
of copper were unknown between them.
請問各位 這題的答案為什麼是 between錯呢
我看過cd的文法解釋了
它說要使用among因為是三者以上
可是smelting and casting 只有兩者阿
謝謝