Since 1908, chlorine has been added to drinking water.自1908年以来氯就被添加进饮用水当中。Chlorine is used to disinfect water.氯用来给水消毒。Chlorine is added to kill bacteria.加氯是为了杀死细菌。...
The news of his death came as a bombshell.他去世的消息令人震惊。Then she dropped her bombshell. " I'm pregnant.”然后她说出了令人震惊的事, “ 我怀孕了. ”It was then that he dropped the bombshell—he wasn’t planning to come with us.那时他突然宣布一个令人不快的...
Minerals in general are not nearly so well absorbed as other nutrients...总体来说，矿物质远远不如其他营养成分好吸收。Thus only the metabolizable portions of a feedstuff can provide energy and essential nutrients.因此,只有饲料的可代谢部分可提供能量和必需的养分.Non-f...