Eventually they either become part of the original tree trunk or become separate tree trunks.

最后，它们要么长成原有树干的一部分，要么长成独立的树干。

What about having him sitting on the tree trunk on the right of the picture?

把他画成坐在画面右边的那棵树干上怎么样？

It had short legs thick as tree trunks with flat, horny feet.

它的短腿粗壮得像树桩，下面是扁平的、粗硬起茧的大脚。

In the kitchen, for sure, I saw that tree trunks came into the apartment.

在厨，确确实实看到有树干倒进了公寓。

The orchid species grows on tree trunks above altitudes of 1600-1700 meters.

这种兰花生长在海拔 1600 至 1700 米以上的树干上。

It developed black wings, so that it was invisible when it settled on soot-covered tree trunks.

他们进化为黑色翅膀，甚至当他们栖息在煤覆盖的树干时以至于能够达到隐形效果。

What aquatic soft-bodied invertebrates have growth rings similar to tree trunks that can determine their age?

哪些水生软体无脊椎动物的生长年轮与树干相似，可以确定其年龄？

Like most primitive dogs, it makes its den in the ground or in hollow tree trunks.

大多数的野犬一样，它们把洞穴建在地下或者树洞中。

Lead researcher Natalie Briscoe said there is a five-degree difference in temperature between a tree trunk and the air.

首席研究员娜塔莉·布斯科说，树干空气之间有5度温差。

Scientists are able to gather some climate information from other materials, such as tree trunks, for example.

科学家能够从其他材料（例如树干）中收集一些气候信息。

Some people think the stones were rolled on tree trunks, or dragged in huge baskets pulled by oxen.

有些人认为石头是被放在树干上滚装前进或者在一个巨大的篮子被公牛拽着人力拖行。

Today, the descendants of these beetles still spend their lives digging tunnels under bark or inside tree trunks.

如今这些甲虫的后代仍然终生在树皮下树干挖隧道。

But Hagrid had already stepped over the great tree trunk in front of them and was proceeding towards Grawp.

可是海格已经跨过他们面前粗大的树干，走近格洛普。

A troop of ants, using this tree trunk as a highway, are completely surprised by this torrent of resin.

一群蚂蚁把树干当成公路，遭到了这股树脂的突然袭击。

As you can imagine, the tree trunk bursting with sap is a strategic attraction for many insects.

你能想象出来树皮丰富的树液对很多昆虫来说是难以抗拒的诱惑。

As if he's been cut from a thick tree trunk and the below-freezing temperature is of no concern to him.

就像是直接从一棵粗重的树桩上刻出来的一样，零下的气温中不动声色。

Just at that moment he saw a large, white, round ball sticking to the inside of an old tree trunk.

就在这时，小兔哥看见一个白色的大圆球黏在一个老树干的面。

Carbon travels through the phloem into the branches, down the tree trunk and even all the way down to the soil.

碳通过韧皮部传到树枝，沿着树干甚至一路传到土壤中。

He fastened it together with wooden pegs and made the four wheels out of short pieces of a big tree trunk.

用木栓钉合在一起，在一株大树的树干上切出了四片轮子。

Then Little Nutbrown Hare had a good idea. He tumbled upside down and reached up the tree trunk with his feet.

小兔子又有个好主意，它把脚顶在树干上倒立了起来。