突然发出一声巨大的爆裂声，玻璃碎片飞进了车里。Suddenly there was a loud crack and glass flew into the car.爆裂声变得越来越响.The crackling became louder and louder.突然,一声巨大的爆裂声响彻云霄.Suddenly a great cracking sound split the air....
铁轨跨过这条河直达矿井口。Across the river the railway track ran up to the pithead.几架马车仍然在破落的矿村中曲折行进。A few horse-drawn carts still trundle through the dilapidated mining villages.紧密团结的矿业界a tight-knit mining community...
介绍了鉴别氯代乙酸的反应原理和操作方法.Reaction principles of chloroacetic acid detection and its operation Methods: Were introduced.表明利用生物技术控制氯代有机物污染的应用前景是光明的.Controlling of chloroorganics pollution by using biological technology has a br...
我们活着是为了什么？不就是给邻居当笑柄，再反过来笑他们。For what do we live, but to make sport for our neighbours, and laugh at them in our turn?最幸福的人们并不一定什么都是最好，只是他们懂得欣赏生活的美好。The happiest are not those who own all the best things, but those who ca...