Davison was sentenced to 10 years in prison for manufacturing ricin, a lethal biological poison made from castor beans.

戴维森因制造毒素而被判处10年监禁，毒素是一种由豆制成致命生物毒药。

Probably the most poisonous plant we actually have here is ricin, better known as the castor bean or castor oil.

我们这里最毒植物可能是毒素，也就是我们熟知子或。

The agency says the substance in both letters has tested positive in preliminary tests for poisonous ricin.

两封信件都被初步检测出毒素。

Senators were briefed on the ricin Tuesday night.

周二晚上，参议员对毒信事件进行了讨论。

A similar letter addressed to a US senator in Washington also tested positive for ricin.

发往华盛顿一名参议员信件也显示毒素阳性。

Those two letters have tested positive for ricin in a preliminary check.

这两封信件在初步检查中被检测出含有呈阳性毒素。

Initial tests on those two letters indicated they were tainted with a poison called ricin.

而初步检测称这2封信被一种称毒素毒药所 “污染”。

NPR's Dina Temple-Raston, who says completing conclusive tests for ricin will take several days.

NPR新闻迪娜·特普尔·拉斯顿报毒素道检测完整结果需要几天。

It's native to East Africa, but grows pretty much anywhere it's warm, including the southwestern United States.

原产于东非，但适合在任何温暖湿润之地生长，包括美国西南部。

And the toxicity of ricin can change depending on how it enters the body.

毒素毒性依据摄取途径而有高低之别。

When the oil is heated the ricin protein denatures or changes shape, which renders it harmless.

榨取中虽含有毒素，但可借由加热，使蛋白质变性而去除毒性。

But when inhaled, ingested, or injected, untreated ricin is readily absorbed by the body's cells.

如前所述，未被加热破坏毒素若被吸入、食入、或注入体内，会迅速进入细胞。

The Canadian woman suspected of trying to mail the poison ricin to the White House is accused of threatening President Trump.

涉嫌试图向白宫邮寄毒素加拿大女子被控威胁特朗普总统。

Just a single ricin molecule is capable of inactivating 1,500 ribosomes per minute as it kills the cell.

毒素是一种酵素，每分钟能够毁坏 1500 颗核糖体，直到细胞死亡止。

What's the update on the ricin attack?

毒素事件有进展了吗？

You might remember a month or so ago, letters tainted with ricin were sent to the president and other officials.

你可能还记得一个月或者更早以前, 毒素污染过信件寄给总统和其他官员。

Carbon dioxide, castor oil, chlorophyll, or caffeine?

二氧化碳、、叶绿素或咖啡因？

It turns out, it wasn't ricin.

最后证明了不是毒。

You can take some castor oil. There's spicy foods.

你可以喝子 吃辣食物。

I said when I felt like that I took a dose of castor oil.

我说当我有这种感觉时， 我服用了一剂。