If people were to precede the comprehensive notion of environmental problem, species would not face the situation of becoming extinct any more.请问前半句如何理解翻译？前半句理解为"要是人们在这个概念之前"？之前做什么呢？感觉这句话不完整，是省...
...戏剧表演。（《韦氏高级英语词典》）The sixth-form students are preparing to take their A levels. 六年级的学生正准备参加他们的高等程度考试。（《剑桥高级英语词典》）My name is Ann Wells and I’m a Grade
10 student at Lakeside High School. 我叫安•...
Few people ask by what
authority the writers of dictionaries and grammars say what they say.by what authority是视作ask的嵌入式宾语从句，在从句the writers of
dictionaries and grammars say作方式状语？
At the same time , passengers are demanding more from their air travel experences which will drive more improvements touching all aspects of the journey.请帮我分析这个句子的结构吧
...; a committee hearing last month when he told parliament that his firm did not use any Facebook data. 请问老师，a committee hearing 前是否缺少介词？ accuse sb of sth。
...ith the house？ Being untidy的逻辑主语是house吗，作宾补?3. You are old enough to
earn your living.其中to earn your living的逻辑主语是you吗，还是old enough to
earn…构成形容词短语，to earn…修饰系表结构？还是修饰enough？这种怎么判断呢?4. Government...
...unded.3）I will
never forget the date when I joined the army.4）The days
are gone when we used "foreign oil".5）It
happended on a day in November when the weather was very wet and cold.6）The film
brought the hours back to me when I was taken good care of in that faraway
village.上述句子先...
...e researchers took measurements on days when the volunteers stood,and when they sat around.When they looked at the data,there were some striking differences.Blood sugar became level after a meal much quicker on the days when volunteers in the study stood compared with the days they spent in a chair....