Children at school receive coloured stars for work well done.学校里的孩子表现得好会得到彩色星星。Stars appeared everywhere, spinning round and round, faster and faster.满眼金星乱转，而且越转越快。The stars must have formed 10 to 15 billion years ago.这些...
Horsehead Nebula: New stars have already formed inside part of it.马头星云: 新的?星已经在其内部形成了.Many stars are invisible without a telescope.许多星辰不用望远镜便看不见。Two backup singers that want to be lead vocalists, solo stars?两位和声歌手渴望成为主唱成...
Now experts are extolling the virtues of the humble potato.现在专家们都在赞美其貌不扬的马铃薯的种种好处。I went and bought about six dollars' worth of potato chips.我去买了大约6美元的薯条。How do you spell "potato"?potato这个词怎么拼写？...
用光度滴定法测定了 羧 甲基菊粉的取代度.Degree of substitution ( DS ) of carboxymethylinulin was analysed spectrophotometric titration.近几年,中国的菊粉市场逐渐兴起.The inulin market booming in China recently.目的: 利用毕赤嗜甲醇 酵母表达 的重组黑曲霉菊粉内切酶,从菊苣菊粉中制取低聚果糖.Ob...
The air reeked of kerosene and huge aircraft rumbled overhead.空气中散发着煤油味，巨型飞机在头顶隆隆地响着。A leakage of kerosene has polluted water supplies.泄漏的煤油污染了水源。It is like putting out a fire with kerosene.这就像用煤油灭火....