她认为她的成功来自勤劳和一点运气。She attributes her success to hard work and a little luck.获得勤劳工作的实际经验to gain hands-on experience of industry炉子清洁无瑕就表明他母亲是个勤劳的主妇.A spotless stove told us that his mother is a diligent housekeeper....
Swallows migrate south in winter.燕子在冬天迁徙到南方。The swallows are building a nest under the roof of our house.燕子正在我们的屋檐下筑巢.Swallows come by groups at the advent of spring.春天来临时燕子成群飞来....
On the condition of thermal contact metamorphism, clay minerals in coal are changed into andalusite.无烟煤中红柱石是煤中粘土质矿物经热接触变质作用形成的.A paper bird cannot stand the strong wind, and a clay figurine cannot bear the heavy rain.纸鸟经...
METHODS: Its optimal extractive condition was found by right - cross test.方法: 用正交试验法得到最佳提取条件.Extractive distillation is an important separation process in chemical industry.萃取精馏是化学工业中重要的分离方法之一.Extractive industry, howeve...