Spider plants (Chlorophytum comosum) are nontoxic and are also among the easiest indoor plants to grow.

蜘蛛草（吊兰）无毒，也是最容易种植于室内的植物之一。

Instead of commonly used highly toxic substances, Townsend discovered that it can be done with nontoxic salts.

而且特温斯德发现可以使用无毒的盐来替代通常使用的剧毒性物质。

They use a variety of techniques to create masterpieces with nontoxic, water-based paint.Many use their paws or claws.Apes will use paintbrushes.

凭借无毒的水制颜料，它们运用各式技法创作各种杰作。很多动物都是肉掌和爪。而猩猩这样的猿类则会拿起画笔作画。

It's a representation of the Physic Garden's original purpose: to teach young apothecary apprentices how to tell the difference between toxic and nontoxic plants.

这代表了药材园的最初目的：教育年轻的药剂师学徒如何分辨有毒和无毒植物。

So, now, she sets him up with some nontoxic colors, a paint brush attached to a paper towel tube, and lets him captain a canvas.

所以，现在，她给他准备了一些无毒的颜色， 一个连在纸巾管上的画笔， 让他画了一块帆布。

It's a totally natural, nontoxic material in our bodies. Our cells produce tens of thousands of different proteins, and basically, all of our food has protein in it.

它是我们体内纯天然、无毒性的物质。我们的细胞能合成成千上万种不同的蛋白质，我们的食物基本都含有蛋白质。