Q: what's brewing today とはどういう意味ですか?
A: Significaría algo así como: "¿Qué se cuece hoy?" o "¿Qué hay hoy?" en el sentido de que si hay noticias nuevas, si ha ocurrido algo interesante o simplemente cómo van las cosas.
Q: brewing of " A split between Doha and the Gulf Cooperation Council (GCC) was brewing for years." とはどういう意味ですか?
A: The split was slowly happening for years.


Q: brewing を使った例文を教えて下さい。
A: A storm is brewing up out at sea.
I’ve been brewing some beer.


Q: She's always inexplicably brewing a cup of tea that she is not drinking. この表現は自然ですか?
Q: I enjoy brewing coffee by hand.

Good fragrant. Time goes by so slowly.
I can't get enough of it. この表現は自然ですか?
A: × Good fragrant.
✓ It’s very fragrant (or: It has a good fragrance.)

× Time goes by so slowly.
✓ Time passes by slowly whenever I’m doing it.

× I can't get enough of it.
✓ I just can't get enough of it.

Q: I found it interesting to go to some brewing for drink local beer in Vancouver.

合ってますか? この表現は自然ですか?
A: It’s a good start. How about this:

​‎I found it interesting to visit some brew pubs and imbibe in the local beer of Vancouver.

Did you know that most brew pubs in Canada (especially Vancouver) make their beer with a starting alcohol content of 3.5% and brew some beers as strong as 7%!!!! The average American beer sold in stores has an alcohol contest between 1.9% and 2.5%.

BIG DIFFERENCE. And you can taste the difference! Canadian brew pub beer = 推し!
Q: Only for brewing more delicious coffee, we had study a thousand flavors. この表現は自然ですか?
A: I think this sounds more natural: in order to brew the most delicious coffee, we studied a thousand flavors. (If you need an example that isn’t past tense, let me know)
Q: When you finish brewing your coffee, you need to throw away the grounds. この表現は自然ですか?
A: Perfect! 😎👍🏽