Student or Learner
sometimes I am not confident about using a certain word in English. I'd like to say some words, like 'bla-bla-bla', and not to be worried if it's ok or not to use it.
if I was to replaced the underlined text by one word only, which one should I use? ''freely''? ''casually''?
"Freely" is probably about as good a word as any for what you want.