Beavers peel off the bark to eat and they also use the branches for building their shelters.
海狸把树皮剥下来吃，它们也用树枝来筑巢。
其正在树皮中打洞以便……
At home it is an excellent watchdog, sounding a warning bark to announce the arrival of any stranger.
在家里，他是一个非常卓越的看门狗，以警告性的吠声告知家人有陌生人来访。
Baby tiger at this stage will instinctively bare its teeth, tighten its nose and bark to scare off invaders.
此时的小虎只会本能地紧鼻龇牙，面露凶相，并以尖声的吼叫吓退来犯者。
In this way, the database scientifically matches a bark to an emotion, which is then translated into one of 200 phrases.
这样，数据库就科学地将一种狗吠与一种情感相对应，并转换成200多条短语中的一条。
Only with a little bark will be quickly built to Lego, connect a Lego with a wire to the bark, and connect a bark to the computer.
仅用一小块bark就能快速地建造乐高积木，将通过导线连到bark上，然后将bark同电脑连在一起。
Sutures have a long and bizarre history, dating back to ancient Egypt, where everything from tree bark to hair was used to stitch human flesh back together again.
缝合技术拥有一段悠久而古怪的历史，可以追溯到古埃及，那时从树枝到头发任何东西都被用来将人类的血肉重新缝合到一起。
Thick layer of bark to make them little by fire, but landslides and strong winds can destroy those inverted tree, the Indians used fallen trees to build canoes or housing.
厚厚的树皮使它们很少遭到火灾，但山崩和强风可摧倒那些老树，印第安人用倒下的树木做独木舟或建房屋。
He grasped the hatchet quickly to peel off the bark and shape the wood.
他迅速抓起斧头，要把树皮削掉，并且修饰木头的形状。
Healthy trees are also better able to fend off bark beetle.
健康的树木也能更好地抵御树皮甲虫。
They would peel large sheets of bark from the tree to form lightweight yet sturdy canoes.
他们会从树上剥下大片的树皮，做成轻便而结实的独木舟。
The drug is derived from the bark of the cinchona tree, native to South America, and by 1856 demand for the drug was surpassing the available supply.
这种药物是从原产于南美洲的金鸡纳树的树皮中提取的。到了1856年，对这种药物的需求已经超过了现有的供应。
"We also built bog bridges, " Macie says. "You need to take the supportive logs underneath and remove their bark because the bark can rot quickly."
“我们还建了沼泽桥，”马西埃 (Macie)说，“你需要将一些支撑的原木放在下面，去掉上面的树皮，因为它们腐烂的很快。”
我不是有意吼你。
If you peel birch bark in the winter, we call it "the winter bark", another layer, a tougher inner layer of the tree adheres to the bark, producing a stronger material.
如果你在冬天剥桦树皮，我们称它为“冬树皮”，另外一层更加坚硬的紧贴树皮的树层就可以生产出更强更硬的材料。
That done, he started to bark.
做完这些，他开始叫了起来。
She tied the unhappy dog up again, but do you think Nana ceased to bark?
她又把那只不幸的狗拴了起来，但你认为娜娜会不再叫了吗？
This efficiency of the birch bark canoe also made an impression on newcomers to the area.
这种桦树皮独木舟的效率也给新来的人留下了深刻的印象。
The objective was to study the chemical constituents in the root bark of Paeonia suffruticosa Andr.
目的是研究芍药根皮的化学成分。
He could see the beetle under the bark, and draw it forth unharmed for us to squint at through the magnifying glass.
他能看到树皮下的甲虫，并把它毫发无伤地捉下来，放在放大镜下让我们看。
You can tell if an animal's greatest fulfillment will be to bark or purr by just looking at its embryo.
我还可以看着某种动物的胚胎告诉你它以后最大的本能是狂吠还是发出咕噜声。
The lifespan of bark shoes is limited to about one week.
树皮鞋的使用寿命只有一个星期左右。
They paw, bark or whine allowing their owners the opportunity to move to a safe place or call for assistance.
它们会用爪子扒、发出吠叫或哀鸣声，以便让狗主人有机会事先转移到安全的场所或寻求帮助。
He went up to this tree and passed his hand over the bark of the trunk, as though seeking to recognize and count all the warts.
他走到那棵树下面，用手摸那树干的皮，好象他要认出并数清那些树瘤的数目。
With nothing to eat, some resorted to eating bark they had ripped off support beams.
由于没有食物，一些人便剥支架上的树皮果腹。
He points to the chewed bark. "They like to stand and bite the tree just to say to other bears, I'm here using this river."
他指着被啃过的树皮，“他们喜欢这样站着啃咬树皮，就是为了告诉同类，这段河流是我的领地。”
It is not the SAP within the furrowed bark, nor a wing attached to a claw.
她不是伤残树皮下的树液，也不是悬在利爪下的翅膀。
It is not the SAP within the furrowed bark, nor a wing attached to a claw.
她不是伤残树皮下的树液，也不是悬在利爪下的翅膀。
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