By bathing in unclean water, they expose themselves to contamination.在不干净的水中洗澡，他们可能会受到感染。The contamination of the sea around Capri may be just the beginning.卡普里岛附近海域的污染也许仅仅是个开始。We must ensure our children against contami...
Fast enough, NASA says, to prevent widespread contamination and save lives.NASA认为只有足够快才能预防炭疽的遍布污染和拯救生命.We must ensure our children against contamination by bad ideas.我们必须保护我们的儿童不受坏思想的侵蚀.The contamination of wild barm wou...