A Cambridge english vocabulary says
The list covers vocabulary appropriate to the B1 level on the Common European Framework of Reference (CEFR) and includes receptive vocabulary (words that the candidate
is expected tounderstand but which is not the focus of a question) and productive vocabulary (words that the candidate needs to know to answer a question).
Example phrases and sentences showing how words might be used are given only where words with different meanings need to be constrained. For example, heel is followed by 'I can't walk in high heels' - this shows that heel is limited to the idea of shoes: candidates
are not expected toknow other meanings, such as the part of the body.
it seems that the expression (expression_1)
are not expected to know the meaning of "the part of the body" for this examination.
is equivalent to this expression (expression_2)
does not need to know the meaning of "the part of the body" for this examination.
Is my understanding right?
How about the first paragraph?