I can Help You
Your sentence was:
I mean, the key to memorize some words in Spanish to increase my vocabulary.
The traduction to Spanish is:
Yo (I) quiero decir (Mean), la (The) llave o clave (Key) para (To) memorizar (Memorize) algunas (some) palabras (words) en (in) Español (Spanish) para (to) Incrementar (Increase) mi (My) Vocabulario (Vocabulary).
If you can look the words in english it are like the words in spanish.
Said