朗文词典说 be/lie at the root of sth (=be the cause of something)是某事物的根本原因,例句：1)Allergies are at the root of a lot of health problems. 过敏是许多健康问题的根源。2)The love of money is the root of all evil . 贪财是万恶之源。为什么句1）are at the ...
The cyclone is one of the most powerful and deadly of storms.这是一本英文字汇书的例句。powerful 是形容词，deadly应该也是形容词才对，后面可以直接接名词storms. 这里为何多了一个介词 of ?Thanks in advance.
The date is close to that of the introduction of printing into England by William Caxton. 我觉得这里的printing into England by theWilliam Caxton可以做introduction的后置定语，为什么要加of呢？
...ization for the PfizerBiotech Covid 19 vaccine, after hearing a wide range of concerns.为什么不是authorization of the Pfizer...这里使用介词for是关于的意思吗？如果是这样，是否等同于about呢？我觉得使用介词of也可以。 麻烦老师讲解一下， 谢谢！
In this “book of books,”
artworks are selected and arranged in a way that emphasizes these connections
between different eras and cultures. We see scenes of children learning to read
at home or at school, with the book as a focus for relations between the
generations. Adults are portrayed (描...
...ff might have rendered more romance to the ton than Romeo's rickety ribs would have rendered to the ounce.问题（1）：以上为than引导的比较分句，到底该如何判断是名词的修饰语、形容词或副词的补足语 还是比较状语从句呢? 6、Tom is as tall ...
请问一下各位老师以下问题:1.The pursuit of dreams leads us to do things out of the ordinary.这句话中的out是什么词性?2.What dream did each of them have?这里的each是代词，然后of them是介词短语作后置定语吗？
曹老师你好，我想知道这句话中为什么要用of interest，直接用interesting不是更好吗，这两种表达有什么不一样？They travel by a different route to reach their destination. And
findings like these have been of interest to biologists and environmental
scientists in a ...
... one is
easy to ask but difficult to answer. The reason is simple: we know of just one
type of life and it’s challenging to do science with a sample size of one. The
field of artificial life—called ALife for short—is
the systematic attempt to spell out life’s fundamental principles. Many of
...
各位老师好，请教dream of和dream about的区别。1、She tried to turn her dream of running her own business into reality.2、He had a dream about Claire. 请问例句1中of后面的内容是不是做dream的后置定语？例句2 dream about是个短语，Claire是宾语？
In the next five years, China will import more than
US$10 trillion of goods and make over US$500 billion outbound investment, and
over 500 million overseas visits will be made by Chinese tourists.问：数量单位词：hundred ,thousand,million等，要么“数词+数量单位词的单数后不用...