It's generally a harmless form of entertainment.

它是一种无毒无害的娱乐形式。

We use earth abundant elements and we use elements which are non-toxic and very benign.

使用地球丰富的元素，并且使用无毒且非常良性的元素。

Rat snakes aren't poisonous or a threat to people generally.

鼠蛇是无毒的，通常不会对人造成威胁。

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.

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

Then, an enzyme called ALDH converts the toxic acetaldehyde to non-toxic acetate.

接着，乙醛脱氢酶(ALDH) 将有毒的乙醛转化为无毒的醋酸盐。

These powder-like microbeads aren't toxic, and their chemical and physical properties are similar to sand.

这些像微珠一样的粉末是无毒的，它的化学和物理属性类似于沙子。

The rocket uses liquid propellant, which makes it more environmentally friendly than previous modules.

“长征七号”是一枚采用环保无毒的液氧煤油发动机的大型液体运载火箭，这样就比先前的配置更为环保。

How we create this environment for the drug-free schools that we want of this country?

要怎样创建环境才能实现无毒品的校园，打造美国人理想中的校园环境呢？

The green color that forms on the skin is actually chlorophyll which isn't toxic but indicates the presence of the toxin solanine which is a defense mechanism against pests.

土豆皮上的绿色实际上是叶绿素，它是无毒的，但这表明了有毒素茄碱的存在，这是一种防御害虫的机制。

Let's look at how sugar is metabolized, but first, we'll look at glucose or " starch" to see how a non-toxic carbohydrate is metabolized.

让来看看糖是何代谢的，首先来看看葡萄糖或“淀粉”，看看无毒的碳水化合物是何代谢的。

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。

John Hocevar, its head of ocean campaigns, concedes that in some locations reefed platforms, if non-toxic, may increase marine life.

该组织海洋运动的领头人约翰承认在一些海域，果珊瑚礁化的平台无毒，那么久有可能促进海洋生物的繁殖。

Some non-venomous snakes, like the tiger keelback, will actually protect their babies by eating poisonous frogs while being pregnant.

一些无毒的蛇，比虎背蛇，在怀孕期间会吃有毒的青蛙来保护它的孩子。

Some kind of snakes are not venomous so I might take a little risk and use my hands.

有些蛇是无毒的，所以可能会冒一点风险，用的手。

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。

Oh, like, non-poisonous butterflies, that have come to look like poisonous ones.

哦，就像无毒的蝴蝶， 看起来像有毒的蝴蝶。

Number 31 on the periodic table, gallium is a non-toxic brittle metal, not very useful.

元素周期表上的第31号元素是镓，这是一种无毒的脆性金属，用处不是很大。

Chicken of the Woods is a good example of a wild mushroom that's not poisonous.

鸡油菌就是一个很好的无毒野生蘑菇的例子。

We've got the rough that are non-virulent.

有那些无毒性的粗糙型菌株。

And then in the byline, it can be like toxin-free eco-friendly cleaning services.

而在作者栏中，它可以是无毒环保的清洁服务。