If you describe someone as la-di-da, you mean that they have an upper-class way of behaving, which you think seems unnatural and is only done to impress people.请问：如何分析与理解粗体部分的从句呢？
Then his bearded month would move, and though he was making sounds that could have been words, which no horses would have had reason to understand, the horses would want to hear.老师好，请问which………的先行词是words还是sounds……
He would resurrect his old eager ambitions and pursue them without faltering. Those solemn but sweet organ notes had set up a revolution in him. 请问老师句中的but如何理解？什么词性，用法，和含义？
...tute in New York in collaboration with the World Health Organisation (WHO) and published in a British medical journal, the Lancet, found that most abortions occur in developing countries—35m a year, compared with just 7m in rich countries.求此句子结构分析和翻译。
Our creative design studio is one of the best in the world. I think we would know what the difference is between a good video and a great video.情态动词would在句中表示什么意思，如果表示猜测应该是would be的形式，难道是表示将来时态？
The less sleep you get, the less time the brain has to regulate stress hormones, and over time, sleep deprivation could permanently hinder the brain’s ability to regulate these hormones, leading to elevated blood pressure. 请问老师 leading to是动名词作主语吗？谢谢