The fermenter is sealed off from the air except for a long narrow vent pipe, which allows carbon dioxide to escape from the fermenter. Since there is a constant flow of CO2 through the pipe, outside air is prevented from entering the fermenter, which reduces the threat of contamination by stray yeasts.
Using fancy words isn't the way to impress. Since you're asking other people for some words, there's a higher chance that you'll accidentally use them wrong. What you're saying is what matters. Whether or not you're able to get your point across is what matters and using "fancy" words isn't going to help with that. I bet what you have is great. Just make sure you're getting your point across and you'll be fine.
There was once a time where my dad didn't try to run away from me. Lol
<span>“You’re buying sorrow that
can’t talk” means that the seller is experiencing hardships and that selling
his possessions is similar to selling his life. </span>
<span>
</span>
<span>In the book’s context, it
depicts the bitterness of the farmers towards the people who are purchasing his
possessions at such a cheap price – lower than how much he had bought them for –
in a time when the people should have been showing their support to each other.</span>
