硫化染料因其有毒而受到注意.The sulfur dyes are noted for their toxic properties.他认为碳最初和硫酸钙反应生成硫化钙.He postulated that the carbon reacts initially with the sulfate to form calc ium sulfide.第三个例子是前章提到的硫化亚铁.A third example is the ferrous...
Involuntary repatriation of Haitians began this week.这周已开始将海地人强制遣送回国。Despite the politics and poverty, I found Haitians fascinating.尽管政治上专制、经济上贫困, 但我觉得海地人还是有魅力的.But Haitians ravenous from days without nourishment say the...