In all the work I have done as president,every decision I have made,every executive action I have taken,every bill I have proposed and signed,I've tried(就是这里)to give all Americans the tools and conditions to build the future of our dream.
这里的have tried，想一想好像有三种理解...
Mental health is the seed that contains self-esteem—confidence in
ourselves and an ability to trust in our common sense. It allows us to have
perspective on our lives—the ability to ‚not take ourselves too seriously, to
laugh at ourselves, to see the bigger picture, and to see that things will...
...明白 loose and free 是什么意思？附上下文：First of all, lean the
technique of nonstop writing. When you are first trying to think of ideas for
an essay, put your pen to your paper and write nonstop for ten or fifteen
minutes without letting your pen leave the paper. Stay loose and free....
Other scientists also said the proposal looked promising but could not evaluate it fully because the details had not been published． 本句中的but后面是不是省略了分句的主语了呢？谢谢
What the writer meant, I think, was singleness of mind, holding steadfastly to the purpose in mind, without being drawn aside by less worhty objects. 请问hold在文中怎么理解？
It is utterly confusing to me that people do not recognize this, despite the fact pretty much anyone who has been a student can tell the difference between their best and worst teachers.这句话怎么理解？为何who后面有两个谓语动词？