\end{aligned}\]
501总吨至2000总吨的部分，每总吨增加1000计算单位；，更多细节参见新收录的资料
it might end up running for a very, very long time.。新收录的资料对此有专业解读
Earlier on Sunday, Iran’s Red Crescent Society released a statement warning residents not to leave their homes because of high levels of toxic pollution caused by the strike on the fuel depots. They cited a risk of lung and skin disease from acid rain and told people not to leave even after the rain has stopped because its evaporation was also causing high levels of toxicity in the air.，这一点在新收录的资料中也有详细论述
One key challenge they would face is that it could be dispersed and then concealed indefinitely.