This orbiting telescope is the largest optical instrument in space.这种轨道望远镜是宇宙中最大的光学仪器.Let's pretend we're on the spaceship orbiting round the earth!让我们假装是在沿轨道绕地球运转的宇宙飞船上!Twenty incoming flights were stacked up ...
There's a great deal of variability between individuals.人和人之间有很大的不同。a degree of variability in the exchange rate汇率的变化幅度There is considerable variability in all the test scores.所有这些考查成绩都有很大变化....
关系代词和关系副词引导定语从句.Relative pronouns and adverbs introduce attributive clauses.定语形容词位于名词前.Attributive adjectives precede the noun.定语性名词起形容词作用.An attributive noun functions as an adjective....