我相信13这个数字不吉利。I'm superstitious about the number 13.很多人认为十三是个不吉利的数字.Many people think thirteen is an evil number.星期五被认为是不吉利的日子.Friday is believed to be an unluckyday....
Some green seaweeds such as enteromorpha flourished in spots.有一些绿色海草--如扁管海藻--东一片西一块地长得很好.The pyrolytic characteristics of two seaweeds were investigated by thermogravimetric analysis technique.采用热分析技术研究了两种海藻的热解特性.Soak th...
敌军对该城发起连串炮轰。Enemy forces lobbed a series of artillery shells onto the city.现在让我来将我的论点串起来。Let me now pull together the threads of my argument.布拉格把他主要人物的身世都串在一起。Bragg weaves together the histories of his main characters....
有机食品是未使用人工化学制剂和杀虫剂的纯净食品。Organic food is unadulterated food produced without artificial chemicals or pesticides.他们担心自来水是否纯净。They worried about the purity of tap water.纯净的空气使天空变得更蓝.A clear atmosphere intensifies the blue o...