The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

and teach a bunch
of cartel chemists how
to cook a BATCH of blue.
Breaking Bad Season 4, Episode 9

Leave it. One BATCH, one ship.
Breaking Bad Season 3, Episode 9

So that BATCH that you just cooked
was 96 percent.
Breaking Bad Season 5, Episode 15

He's finishing up a BATCH.
Breaking Bad Season 5, Episode 16

Every time we bring in
a new BATCH, he always
tests the product, right?
Breaking Bad Season 2, Episode 1