Edit: My apologies, I misunderstood the question.

To add onto what Bill said, in this context they're saying that the ending essentially "melted into a puddle of goo", in that it fell apart and wasn't very good. It couldn't hold its structure, and once something has melted you can't really get it back.

I think the purpose is to properly distinguish between words. Without emphasising the end of "pizza", "pizza" and "out" could blur at the vowel sound and almost become one word lol. It's easier to add the emphasis than it is to pause and make sure you stop one vowel before starting the next. So, "pizza (pause) out" can almost become "pizza route". :P

Songs of Peace

Hi! I am currently learning English, Spanish, Portuguese, Chinese, French, Russian, Arabic, and Korean.
I have decided to practice singing songs of peace in all of the languages that I am learning. I will sing them while playing guitar (I don't know how to say this in English, but it's called 弾き語り in Japanese...) So, I am looking for songs for that.

Do you have any recommendations?

For English, I am thinking about Heal the World by Michael Jackson.
And for Chinese, 稻香 by 周杰伦. That's all for now.
Any recommendation will be appreciated, thank you! Peace!

There are a few c*** words, but I'm going to assume you mean cu** and not co**? If you do mean cu**, it's a bit of a taboo word that has taken on a few meanings. It was originally a word for a woman's genitals, but has progressed into just a generally derogatory word. Many regard it as the worst thing you could call someone. It varies by region, though. I think it's quite offensive in the US, but in places like Australia (where I'm from) people tend to use it almost as a term of endearment.

What to expect essentially means letting you know what is going to happen ahead of time. The guide will let you know "what to expect prior to departure", meaning it's going to outline for you the things that are going to happen and the things that you can look forward to or prepare yourself for.

"Here's to..." is used when you're toasting something - for example, "Here's to your continued success". You're toasting/celebrating someone's success, and hoping it continues. Here's to you is essentially toasting/celebrating the person/thing you're saying it to. In this case, the person is celebrating both finishing the writing, and also the person that is being written about. Final line of copy, as far as I can tell, is a pretty old fashioned way of saying the end of what you've written. The end of the document. The person may have backed up the floppy disks (made another copy of it, so that they had two - an original and a back up). Her voice wavering indicates that she was upset. At the end of the sentence her voice almost broke, but it didn't. I don't think the specific word "hell" has any special significance, just that it was the end of the sentence and she managed to say it without her voice breaking as what she was saying was emotional for her.