有毒的化学药品进入了供水系统。
铅可以在体内积聚直至到达有毒的程度。
Lead can accumulate in the body until toxic levels are reached.
那个化工厂排出大量有毒的废水。
A lot of poisonous waste water comes from that chemical factory.
没有鱼能在这个天然有毒的湖中生存。
否则，没有鱼能在这个天然有毒的湖中生存。
Otherwise, no fish are able to survive in the naturally toxic lake.
要是塑料和橡胶被焚，就会放出有毒的气体。
If plastic and rubber are burnt, they'll give off poisonous gases.
它们可能会吃一些有毒的东西，损害它们的健康。
有毒的矿物质首先被根部吸收，然后转移到茎和叶上。
Toxic minerals would first be absorbed by roots but later relocated to the stem and leaves.
一定剂量的苯丙胺是确证对动物有毒的，因此不能用于人类。
It has proved toxic at some doses in animals and so cannot be used in humans.
浓密的数据烟雾将不会有所缓解，一些研究者担心这些数据烟雾可能是有毒的。
There will be little respite from the dense data smog, which some researchers fear may be poisonous.
其他哺乳动物如鸭嘴兽和一些鼩鼱是有毒的，这意味着它们会在体内产生一种毒素。
Other mammals, such as the platypus and some shrews, are venomous, meaning they produce a toxin internally .
我们都听说过伞菌并且知道它们都是有毒的，但是很多人并不知道伞菌也是蘑菇的一种。
We have all heard of toadstools and know that they are poisonous, but what many people don't know is that a toadstool is actually a mushroom.
一位66岁的佛罗里达邮递员正在送信，当他往一个邮箱塞信的时候，一条有毒的蛇了他一口。
A 66-year-old Florida mailman doing his rounds was bitten by a poisonous snake when he put mail inside a mailbox.
这是一只来自地狱的六肢黑豹，有一辆拖拉机拖车那么大，有一个装甲头和一个有毒的攻击尾巴。
It is a black six-limbed panther from Hell, the size of a tractor-trailer, with an armored head and a venomous striking tail.
我们可以把西部平原上覆盖的大片草地撕开，然后把有毒的化学物质倒入土壤中，直到土壤枯死，被风吹走。
We can tear apart the great grass cover of the western plains and pour toxic chemicals into the soil until the soil is dead and blows away in the wind.
收割下来的枝叶会将有毒的化合物转移到远离这片区域的地方，它们将被焚烧或者用作堆肥，回收金属物质用于工业用途。
A harvest of the shoots would remove the toxic compounds off site to be burned or composted to recover the metal for industrial uses.
Sherwin最近对家养母鸡的实验并不支持这样一种观点，即鸟类的社会学习必然会促使它们对有害或有毒的新食物产生反感。
Sherwin's recent experiments with domestic hens do not support the notion that avian social learning necessarily facilitates aversion to novel foods that are noxious or toxic.
在偏远地区，空气是纯净的，庄稼也不用有毒的杀虫剂。
In remote regions, the air is pure and the crops are free of poisonous insecticides.
这项研究包括了一些有毒的蜥蜴。
传说中，为了防止人们食用有毒的植物，神农品尝了数百种野生植物，看哪些是有毒的。
As the legend has it, Shen Nong tasted hundreds of wild plants to see which were poisonous, in order to prevent people from eating the poisonous plants.
比如无毒的蝴蝶，变得与有毒的那些看起来一样。
Like, non-poisonous butterflies, that have come to look like poisonous ones.
这个苹果被做成一边是好的，而另一边是有毒的。
Now the apple was so made up that one side was good, though the other side was poisoned.
整个植物，也被称为芸豆树，是有毒的，尽管有人说它的花无毒。
The entire plant, also known as a kidney bean tree, is toxic, though some say the flowers are not.
它们能在含有对大多数其他植物有毒的高浓度金属的土壤中茁壮成长。
They can thrive in soil with high concentrations of metals that are toxic to most other plants.
《有毒的童年》的作者苏·帕尔默非常担心，大多数三岁以上的女孩都对这种颜色感到疯狂。
Sue Palmer, writer of Toxic Childhood, is very worried that most girls over the age of three are crazy about the color.
在日本和韩国一些物种的肉被视为珍馐，但是问题是许多河豚鱼的表皮和特定的器官是对人有毒的。
The meat of some species is a delicacy in both Japan and Korea, but the skin and certain organs of many pufferfish are poisonous to humans.
尽管有特征说明蘑菇是有毒的，但它们是不一致的，所有来历不明的蘑菇都应该被认为是有危险的食物。
While there are signs that a mushroom is poisonous, they are not consistent, and all mushrooms of unknown origin should be considered dangerous to eat.
如果没有真正的无毒蛇，那些所谓的无毒蛇，比如蟒蛇和巨蟒，在它们进化过程中的某个阶段是有毒的吗？
If there are no truly non-venomous snakes, were the so-called non-venomous snakes, like constrictors and pythons, were they venomous at some point in their evolution?
也许在以前的生物课上，你学过蛇是由蜥蜴进化而来的，而且最初的蛇是没有毒的，后来出现了更高级的蛇，也就是毒蛇。
Probably back in some previous biology course you learned that snakes evolved from lizards, and that the first snakes weren't venomous and then along came more advanced snakes, the venomous snakes.
只有一些稀有物种产生有毒的单端孢霉烯。
Only a few rare species are known to produce the toxic trichothecenes.
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