ebonite rod

例句：

1. 1. The ebonite rod is an essential tool for carving wood.
   黑玉棒是雕刻木材的必备工具。
2. 2.The black ebony rod was a prized possession of the ancient Egyptians.
   黑玉棒是古埃及人珍贵的宝物。
3. 3. The ebonite rod was used to shape the statue's features.
   黑玉棒被用来塑造雕像的面部特征。