Rawlins stresses that it is impossible to prove a causal link between the drug and the deaths.

罗林斯强调说证实毒品与死亡之间的因果关系是不可能的。

《柯林斯英汉双解大词典》

Rawlins stresses that it is impossible to prove a causal link between the drug and the deaths.

罗林斯强调说证实毒品与死亡之间的因果关系是不可能的。

《柯林斯英汉双解大词典》