Just a diary in English Day 3

I decided to pursue a career in the field of a interpreter, and this is why I put so much effort in studying English.
While I am studying to be an interpreter, I noticed my lack of English vocabularies.
If you know the vocabularies, you can guess the meaning without the knowledge of grammar and so.If you can line up the vocabularies, listener can guess what you wanna say even there's grammar mistake.

Without vocabularies, there's no clue.

Well you can use body language instead if you want though.

As an interpreter, it is crucial to know the meaning. You can ask the speaker to explain with different words, but you don't wanna interrupt them as much as you can.
I've kept avoiding to memorize difficult vocabularies for long, but it seems the time to try has come.