What is the English word for perception?

Concept in English: sense;?idea;?concept;?perception.?

[Example sentence]We must not lose our primary and secondary concepts.

We must not lose our?sense?of?proportion.

English Translation Skills:

The Omission Translation Method, which is the opposite of the Enhancement Translation Method mentioned in the beginning, requires you to delete the parts that don't conform to the way of expression, the habit of thinking, or the habit of language of the Chinese language, or the English language.

This is the opposite of the augmentation method mentioned at the beginning, which requires you to delete the parts that don't conform to the Chinese or English way of expression, thinking, or language habits, so as not to make the translated sentence heavy and cumbersome.