Nuclear weapons plants across the country are heavily contaminated with toxic wastes.全国的核武器工厂均受到了有毒废弃物的严重污染。Lead can accumulate in the body until toxic levels are reached.铅会在体内积聚直至造成铅中毒。Toxic waste could endanger lives a...
He has found that smoke and toxic gases can be transported swiftly up through the atrium.他发现烟和毒害性气体可通过中庭迅速向上传播....a weapon which releases toxic nerve gas...释放神经毒气的武器There is a risk that toxic chemicals might be blasted i...