be very knowledgeable, be an expert (in a particular subject)

listen to the pronunciation of be very knowledgeable, be an expert (in a particular subject)
Английский Язык - Английский Язык
know right well
be very knowledgeable, be an expert (in a particular subject)

    Расстановка переносов

    be ve·ry knowledgeable, be an ex·pert (in a par·ti·cu·lar subject)
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