树干的英文：
tree trunk

参考例句：

The prostrate trunk of a coconut tree
椰子树的直树干

Forest slalom
以树干作旗门

He hewed a canoe out of a tree trunk.
他把一根树干凿成独木舟。

A canoe made by hollowing out a tree trunk;a dugout.
独木舟将树干中心挖空制成的独木舟;独木舟

The soft,spongelike,central cylinder of the stems of most flowering plants,composed mainly of parenchyma.
(木)髓许多生花植物树干中心部位中的软似海绵的物质，主要由薄壁组织构成

There is a big protuberance on the trunk
树干上有个大包。

A partially submerged log or trunk.
部分浸没的木头或树干.

The trunk of a palm or tree fern.
棕榈树或树蕨的树干

Sling a hammock between two tree-trunks
把吊床悬在两树干间

The trunk of the rubber tree emits drops of liquid rubber.
橡胶树的树干流出一滴滴液状橡胶。

tree是什么意思：
n. 树，木料，树状物
v. 赶上树；爬上树；逃上树

The trees are sparse.
树木稀疏。

The trees are in blossom .
树上鲜花盛开。

the parent tree
母树

Such a tree may be at odds with a scientific tree.
这种树，可能与科学上的树有区别。

Deciduous trees: Hardwood trees which shed their leaves.
落苣树:年落苣的硬木树。

trunk是什么意思：
n. 树干；象鼻；大衣箱；躯干

This is a lined trunk.
这是一个有衬里的箱子。

They paved the trunk line of a railroad.
他们铺设了铁路的干线。

Look, this is central nerve trunk.
看，这是中枢神经干。

The trunk was packed with clothes.
箱子里装满了衣裳。

I need to check your trunk.
我需要检查您的后备箱。