The company then expanded the drug trials to the United States.

然后公司扩大疫苗试验范围到了美国。

We can't do the drug trials, but we're still very interested in causal facts.

我们不能进行药物试验，但我们仍然对因果关系很感兴趣。

I can't believe I'm doing a drug trial.

难以置信 我真的来试药了。

Look, we did a drug trial to get money for this.

听着 我们为了凑律师费去试药了。

I have to keep my system clean. I'm doing a drug trial tomorrow.

我需要保证我体内清洁 明天要参加个药物试验。