To be able to perform a certain task successfully, we need to have
certain skills. In this case, conventional knowledge tells us
that to become fluent in an action or task that we must study
carefully the movements of the hand as well as the sequence of operations that hands
must to implement. Main knowledge this convention with conceptual metonymy "hand expression
skills represent "help us understand the meaning of the idiom implications on:
"a DAB hand" for example (8) carries a very common sense proficient, specialized expertise in
something; "Keep my hand in" in the example (9), meaning do not forget to
practice; "An old hand" in the example (10), meaning worked very familiar hand and rich
experience. The saying "hands down" in the example (5) or "with one hand tied
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