1 (I often encounter sentences that feel very basic at work, but I am always stuck and unable to express them)
There are two situations: 1. I don’t know how to say it 2. I know how to say it , the psychology is very clear. But when I say it, I can’t say it.
The first situation: practice a lot, and you must master the basic things. Especially grammar. And business vocabulary , the more you master, the better.
The second situation: just two words: say more!
2 The vocabulary is very small.
The vocabulary is this Things cannot be rushed. They are accumulated bit by bit. Just memorize them. There is no other way.
I wish you success!