44Accordingly, a ground of appeal supported by an argument that is not sufficiently precise and substantiated to enable the Court to exercise its powers of judicial review does not satisfy those conditions and must be declared inadmissible (see, to that effect, judgment in Telefónica and Telefónica de España v Commission, C‑295/12 P, EU:C:2014:2062, paragraph 30 and the case-law cited).
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