可以采取疫苗接种和其他预防措施。Vaccination and other prophylactic measures can be carried out.接种疫苗的成本合计约60万美元。The cost of the immunizations was about $600,000 all told.英国孩子每年要接种7百万剂疫苗。Seven million doses of vaccine are annually given t...
Leshka waved him away with a show of irritation.廖什克恼火地挥手让他离开。I waved goodbye and went down the stone harbour steps.我挥手告别，然后走下港口石阶。Steamers tooted at us as sailors on deck waved in amusement.汽船向我们嘟嘟鸣笛时，甲板上的水手们饶有趣味地挥着手。...
Crime and drugs are infesting the inner cities.市中心充斥着犯罪与毒品。They are mainly forest scavengers infesting damp, rotted wood.它们主要是些森林食腐动物,多侵害潮湿腐朽的木材.Occurence And Harm of The Gall Mite Infesting Lycium barbarum L.与枸杞瘤瘿螨的发生与危...