Things like leeches where their ability to suck blood out is advantageous.

像蛭的吸血能力是可以治病的。

For 3,000 years, people have been cut or given leeches to let out the blood because they thought that would make people better.

在长达3000年的时间里，人们划破皮肤血或使用蛭吸血，因他们血能够改善他们的身体。

Being infected by hookworms, roundworms, bacteria like H. Pylori and other pathogens, getting wounded from accidents or animal attacks, ticks, leeches and so on would all be great ways to lose blood and iron for paleolithic humans.

被钩虫，蛔虫，像幽门螺旋杆菌这样的细菌和其他病原体感染，被意外伤害或动物攻击，蜱虫，蛭等等都是旧石器时代的人类失去血液和铁的好方法。

Polyjuice potion, allows the drinker to take on the form of someone else, is a delightful concoction reportedly made from stewed lacewing flies and unsucculated leeches.

复方汤剂，可以让服用的人变成另外个人的样子，这种诱人的混物据说原料是炖熟的草蜻铃和去掉嘴巴的蛭。

The FDA has okayed leeches for some procedures.

美国食品及药物管理局已经同意用蛭辅助治疗。

And my brother would be delighted to doctor her for nothing-medicines, leeches, and all.

我哥哥也会很高兴免费她治病——药品、蛭，什么东西都行。

Crazy nature man. You wanna take a leech home as a pet?

疯狂的家伙。你想带个蛭回家做宠物？

Oh, that's from the leeches, sir. - From the leeches.

这是蛭咬的，先生。—蛭咬的。

The process of DNA metabarcoding starts with an environmental sample like a core of soil, a vial of water, some feces, an insect trap, or even the blood from leeches' stomachs.

在使用 DNA 复条形码之前，我们需要收集相关环境样本。像是份核心土壤，小瓶，排泄物，个捕虫器，甚至是来自蛭胃里的血液都能作很好的样本。

Another popular remedy was bloodletting, which was belief that drawing out bad blood that caused illness would then be restored by good blood, with the most popular method of this being with leeches.

另种流行的治疗方法是血，这是种信念，即抽出导致疾病的坏血，然后用好血恢复，最流行的方法是用蛭。

The purpose is to create lots of ripples in the water so if there's leeches farther away, they will be attracted to this point.

目的是在里制造许多涟漪，远处有蛭的话会被吸引到这边。

If you have a phobia of insects or leeches like me, spiders and bugs and things, they might make your skin crawl.

如果你像我样有昆虫或蛭恐惧症，你害怕蜘蛛和虫子什么的的话，它们可能会让你浑身难受。

In ancient Rome they would combine my tinted sap with leeches, ashes, and charred things to make dark hair dye.

在古罗马，人们会把我有色的汁液与蛭、灰烬和烧焦的东西混，制成深色染发剂。

Before returning back to the dock, Captain Sham pushes Aunt Josephine into the lake and the Lachrymose Leeches eat her.

在回到码头之前，沙姆船长把约瑟芬阿姨推进湖里，泪湖蛭吃掉了她。

To rebalance your humours, medieval doctors would pop leeches onto your skin and let them suck your blood.

了重新平衡你的体液，中世纪的医生会把蛭在你的皮肤上，让它们吸你的血。

Physicians would try any desperate measure, bloodletting was tried, leeches were used, but none seemed to work.

内科医生用尽各种权宜之计，尝试过血 蛭吸血等方法 但没有种方法得见起效。

You gotta be real desperate to eat grasshoppers, raw leeches, frogs and cockroaches, oh my God.

沦落到不惜以吃草蜢蛭、青蛙和蟑螂果腹，这该有多绝望，我的天呐！

Swarm it like mosquitoes or leeches.

像蚊子或蛭样包围它。

Oh, my God, I have a leech on my neck.

天哪，我脖子上有条蛭。

She continued to follow through the rainforest for nine days, avoiding run-ins with anacondas, six-meter long crocodiles, and the orifice eating leeches that call this rainforest home.

她用了整整九天穿越热带雨林，躲避突然窜出的蟒、六米长的鳄鱼和热带雨林的吸血蛭。