n.[C]

1. 树干
   The trunk of this tree is four meters thick.

   这棵树的树干有四米粗。

2. （旅行用）大皮箱；汽车车尾的行李箱
   Let me put your baggage in the trunk.

   我来把你的行李放在汽车后部的行李箱内。

3. 象鼻
4. 躯干，身躯
   The athlete has a powerful trunk.

   那个运动员身躯强壮有力。

5. （铁路，公路等的）干线
6. 大血管，神经干
7. 男用运动短裤[P]
8. 【矿】洗矿槽

vt.

1. 槽内洗选（矿砂）

n.

1. the main woody stem of a tree as distinct from its branches and roots.
   ▸the main part of an artery, nerve, or other structure from which smaller branches arise.
2. a person's or animal's body apart from the limbs and head.
3. the elongated, prehensile nose of an elephant.
4. a large box with a hinged lid for storing or transporting clothes and other articles.
5. N. Amer. the boot of a car.
6. [as modifier] relating to the main routes of a transport or communication network:
   a trunk road.