Learn English – the difference between “maintain a high level of quality” and “maintain a high quality level”

They are freely interchangeable in many everyday contexts, but there are differences in the tone of voice. "Meant to" has a more philosophical, fatalistic connotation, while "supposed to" might refer to a transgression or snafu of some sort. For example:

• Despite the best efforts of the director, the actors and the rest of the crew, the movie didn't do well- it just wasn't meant to be a blockbuster. Try substituting 'supposed to' here and it sounds way wonky.

• Despite the best efforts of the director, the actors and the rest of the crew, the movie didn't do well- it just wasn't supposed to be a blockbuster. Well, what can I say. It was supposed to be a blockbuster; unfortunately, it wasn't meant to become one.

So, my submission is, the context matters. 'Meant to' might be used in situations that can be remedied as well as in situations that can't, while 'supposed to' might be used in a situation that can possibly be reversed.

J.R. mentioned a distinction that applies in some cases and noted that because of the wide range of uses of the two phrases, there might not be a “universal way to differentiate when one should be used instead of the other”.

Another distinction (similar in that it applies in some cases but far from all) is that “Here we go” is frequently inclusive of the speaker, and “There we go” frequently is not. A very few of the examples of “Here we go” and “There we go” found in A Collection of Confusible Phrases by Yuri Dolgopolov illustrate this:

Another distinction is that “here we go” is found 10 times more commonly (in Google Books English-language corpus) than is “there we go”, and many instances of the latter are irrelevancies like “From there we go to Spain”.