And in high doses, it's toxic.

而剂量太大，则有毒性。

In either scenario, tolerance leads to the need for higher and higher doses of nicotine over time.

不管是哪种情况，耐受都会使机体对尼古丁的需求量逐渐增加。

Seriously, extremely high doses broccoli can actually be toxic.

真的，吃大量的西兰花也会中毒。

Those given a high dose produced just 1.4.

受高剂量杀虫剂影响的蜂群只产生1.4个。

Generally speaking, higher doses of cocaine carry the greatest risk of addiction and death.

总的来说，大剂量的可卡因带来极大的死亡、成瘾之危。

Pushing you to take even higher and higher doses to get any relief and increasing your chances of an overdose.

这会导致服用更多的剂量才能减轻疼痛，增加用药过量的几率。

High dose antibiotic treatment with penicillin V or clindamycin is also needed to kill the bacteria.

还需要大剂量抗生素如青霉素V、克林霉素杀灭细菌。

This gas can be fatal in high doses, as it prevents oxygen from entering the lungs and blood.

这种气体在高浓度情况下可能致命，因为它阻碍了氧气进入肺部和血液。

Worryingly, even colonies given the high dose may have got off lightly compared with their wild brethren.

令人忧心的是，即便受高剂量杀虫剂影响的蜂群可能要比它们在野外的同伴受到的危害低一些。

They exposed some, via contaminated pollen and sugar water, to high doses of imidacloprid, a type of neonicotinoid insecticide.

他们用受污染的花粉、糖水将一些蜂群暴露在高剂量吡虫啉-一种新烟碱杀虫剂的环境里。

Others were exposed to low doses (half as much as the high dose), or to no dose at all.

一些蜂群暴露在低剂量（高剂量的一半）或无剂量（杀虫剂）的环境里。

High doses of chemotherapy or radiation kill the patient's existing marrow, destroying both malignant cells and blood stem cells.

用高剂量的化疗或放射线照射杀死患者现存的骨髓，将癌细胞与造血干细胞同时破坏掉。

It's thought that the high doses of antioxidants interfered with the immune system, allowing the cancer to grow unchecked.

人们认为高剂量的抗氧化剂会干扰免疫系统，让癌细胞不受控制地生长。

At higher doses, the visual world can appear to melt, dissolve into swirls, or burst into fractal-like patterns.

剂量加高之后，眼睛看到的世界则像是融化一般，一切溶解形成漩涡，或是变成分形样式。

If the ACTH level is high, the next step is to give an injection of a high dose of dexamethasone.

如果ACTH水平过高，下一步则需要注射高剂量地塞米松。

In higher doses, opioids can affect cognition and even breathing.

在较高剂量下，阿片类药物会影响认知甚至呼吸。

I had never done a high dose of mushrooms blindfolded.

我从来没有蒙着眼睛吃过大剂量的蘑菇。

I'd done high doses of LSD but not mushrooms.

我服用了高剂量的LSD，但没有服用蘑菇。

At higher doses, they begin to diverge.

当剂量较高时，它们开始出现分歧。

However, higher doses of screen time were clearly associated with lower happiness.

然而，较高剂量的屏幕时间显然与较低的幸福感相关。