It(a system of conservation)tends to ignore, and thus eventually to eliminate, many elements inthe land community that lack commercial value, but that are essential to its healthy functioning.请老师帮忙翻译并分析此句，谢谢！
of+n表示同位语的意思时，可以例举吗？比如：various essential items: a lantern, a sleeping bag, food, water, and a flashlight能否写成various essential items of a lantern, a sleeping bag, food, water, and a flashlight
...ancing its growth and development by liquidating biophysical
“capital” essential to its own existence. We are dumping waste at rates beyond
nature’s assimilative capacity. Warming temperatures, plunging biodiversity,
worldwide deforestation and ocean pollution, among other problems, are all
im...
... age of sixty这样的句子不符合英语习惯用法。例如，Longman Essential Activator (上海外教版2002) 指出：at the age of…用于表示某事发生时某人的年龄多大（use this to say how old when something
happened）。例如：He died in 1995 at the age of 73. 该书明...
A written form isessential for this,so the more possibility of revival has led many speakers of endangered languages to develop system of writing where none existed ...
...用标点符号；后一例是句子（a sentence），其后用问号。Essentials of English Grammar(2006)-也指出：An
infinitive sometimes by itself serves to form an independent sentence. Thus in a question:What to do? Where
to go? How to get rid of that bore?Why not
go at once? (=Why sho...
Self-discipline is absolutely essential, as are motivation and energy.请问一下老师，as在此处作为非限制性定语从句的引导词修饰的是谁？as在句中做什么成分呢？从句中为什么要把are放在as后面，难道不应该是“as motivation and
energy are”吗？谢...
...r two other reasons, lack of
physical and mental energy, both of which are essentialin turning out and
throwing away, and sentiment. Things owned for a long time are full
associations with the past, perhaps with relatives who are dead, and so they
gradually acquire a value beyond
their true worth.S...
General intelligence isessential for outstanding achievement because it involves your natural ability to
comprehend difficult concepts quickly and to analyze them clearly and
precisely. it指什么？感觉应该是General intelligence。但有人提出it是形式主语。
In 1919, President Woodrow Wilson had a stroke and his second wife Edith essentially ran the country for 18 months.By that point, the 25th Amendment was long overduebut it took the Kennedy assassination to get it written.And it didn't get used by a president for another two decades when President Re...