木质部

例句：

1. 1. The wooden door was made of oak.
   这扇木门是用橡木做的。
2. 2. The tree's trunk is the main part of its structure.
   树的主干是其结构的主要部分。
3. 3. The woodworker carefully carved each piece of furniture.
   这位木匠仔细雕刻了每一件家具。