what's the difference between "emotional " and "sentimental "?

Is “content” countable ? Eg. Because there were few students who actively contributed, we editors had to try many different ways to get good content for the magazine. Can the word "content" be plural here?

"say a word" or "speak a word"? I've seen an article mention that "Don't speak words that you don't mean.", and I got puzzled about it. Mostly I hear people would say "Don't say a word" rather than "Don't speak a word."... So which one is correct? What's the difference between them? And how to tell when to use "say" or "speak"?

what's the difference between “in the 1950‘s’” and "in the 1950s"? He was born in ______. A. the 1950‘s B. the 1950s Which one is correct?

What does "not anytime soon " mean? does it mean never ?

recommend some books that make you think deeply I myself like books about humanities, so it would be better if anyone can recommend some of this type of books to me. Thanks!!

what does "I'm done with it" mean?

What does " play the field" mean? Is it a derogatory term or commendatory term to describe a person?

What's the difference between "intellectual","intelligent","intelligible" and "smart"? What's the difference between "intellectual","intelligent","intelligible" and "smart"?