how to understand to no avail I tried to make them comfortable, but to no avail. I wonder why "to no avail" can use like this. why "no avail' can use after "to". I can understand.

what does this means "He said that if I work for him, I wouldn't have to pay for this month's rent, that he'd call it even." What does "he'd call it even" means in this sentence ?

What does this means what does "Thanks for nothing" means. How I can use it.

There's no getting around it "There's no getting around it" what does this sentence means ? And "There's no getting around it, which is ironic because his family is loaded.They have tons of cash, but, I thought I was strapped for cash, but Max just has no clue." In this sentence is" I thought I was strapped for cash, but Max just has no clue" means my cash is only enough to let me surive, but Max has no worry about money.

talk about their inner most feelings what does the "inner most feelings" mean ?

he kind of goes for what he wants and just does it what does "he kind of goes for " means in this sentence ?

I have to excel Is "I have to excel" means I have to do something good. I wonder if this used in slang?

What is the difference between polite and respectful What is the difference between polite and respectful, and can I use one insteed another one?

how to use "as to" I think Elizabeth has definitive plans as to what's going to happen not only with this space, but the entire building. In this sentence, does "as to" has the same meaning with "about"?