These turned out to be poison ivy.

结果这些树叶是毒藤。

I've heard that poison ivy can cause severe itching.

我听说毒藤会引起严重的瘙痒。

The park service warns that poison ivy grows wildly in the inner canyon.

公园管理人员警告说，峡谷深处常生长着毒藤。

Lacquer's related to poison ivy and poison sumac.

漆树与毒葛和毒漆树类似。

My Scout leader said to just use the leaves to wipe. It was poison ivy.

我的童子军队长让我用树叶来擦。我用了毒葛。

Don't go rolling in poison ivy as soon as I leave the house.

别等我一出门就去毒藤丛里打滚。

But if you've ever broken out in welts from brushing against poison ivy, or seen a telephone pole swallowed up by a Kudzu vine, well, you know plants do things.

但是，如果你曾经因为擦到毒葛而受伤，或者看到一根电线杆被葛藤吞噬，那么，你便道植物是会做一些事情的。

Their motto has always been, be prepared, and perhaps that now includes spotting things like poison ivy and deep fakes.

其座右铭始终是" 时刻准备着" ，如今他们或许既需要学习识别毒藤的野外求生识，也要考虑辨别深度伪造内容的人工智能问题。

And the sheep tend to like tree seedlings, poison ivy, herbaceous weeds, even more than the grass.

而绵羊倾欢树苗、毒藤、草本植物，甚至比草更欢。

I was actually researching goats because I knew that goats would eat poison ivy and it doesn't bother them.

我其实是在研究山羊，因为我道山羊会吃毒藤，而这并不会让它们感到不适。

A boy who once wiped his ass with poison ivy probably doesn't belong in a smart people's club.

一个曾经用毒藤叶子擦屁股的男孩很可能不属聪明人俱乐部。

Ho, there is a lot of poison ivy in here.

何，这里有很多毒藤。

There's something in particular called poison ivy.

有一种特别的东西叫毒藤。

Do they mean boost the histamine that's released when exposed to poison ivy?

他们是指增强接触毒葛时释放的组胺吗？

This is poison oak and poison ivy.

这是毒橡树和毒藤。

An itch can begin when a substance (such as an oil in poison ivy) activates mast cells. These immune cells release itch signals and kick off inflammation. Scratching boosts that process, the new study suggests.

瘙痒开始某种物质（如毒藤中的油）激活了肥大细胞。这些免疫细胞释放瘙痒信号并引发炎症。新的研究表明，抓挠会增强这一过程。

When it comes to plants like poison ivy or poison oak, you may have heard this rule: " Leaves of three, let it be." If you haven't, that's a good rule to know.

说到像毒漆树或毒橡树这样的植物，你可能听说过这条规则：“三片叶子，绕道走” 。 如果你还不道这条规则， 那它很值得了解。

While an asthma attack, poison ivy welts, and irritable bowel syndrome might seem totally unrelated, they all have something in common: an immune response that's doing more harm than good.

虽然哮喘发作、毒藤伤痕和肠易激综合症似乎完全无关，但它们都有一些共同点：弊大利的免疫反应。

But because of the delayed timing, it’s thought to be similar to a poison ivy reaction, which activates immune cells called helper and killer T cells and causes inflammation.

但由反应时间较晚，人们认为它类似接触毒藤后的反应， 会激活称为辅助性和杀手T细胞的免疫细胞并引起炎症。

Following his lead, we head off the path, over fences and through tall brush. My face is going to be covered in poison ivy soon.

跟着他，我们偏离了小径，翻越篱笆，穿过茂密的灌木丛。我的脸很快就要被毒葛覆盖了。