氯用来给水消毒。Chlorine is used to disinfect water.给水加热时, 它会变成蒸气.When heated, water changes into vapour.可以毫不夸张地说,有成千上万座混凝土水坝正在供灌溉,给水 、 防洪 、 发电之用.Literally thousands of concrete dams are providing water supply shortage, irrigati...
Weaving and knitting are traditional cottage industries.编织和针织是传统的家庭手工业。traditional crafts like basket-weaving像编篮子之类的传统工艺Weaving was the town's chief craft.纺织是该镇的主要行业....
Here are the fliers, hot off the press!传单来了,刚刚印出来的!He talked of sending in more contract fliers.他谈到派遣更多合同飞行员的事.The first fliers went aloft in balloons.最早的飞行员乘坐气球升向空中....