Pay close attention to the bolded text in the examples. Learning that you crack down on crime (and not crack down on homework ) ensures your English sounds natural to native ears.
around, away, back, down, in, into, off, on, out, over, through, up macmillan phrasal verbs plus dictionary pdf exclusive
It covers not just the literal meanings but the crucial idiomatic meanings that make native speakers hard to understand. Pay close attention to the bolded text in the examples
Thus, the term serves a marketing function—creating a sense of scarcity and urgency—rather than describing technical or content uniqueness. macmillan phrasal verbs plus dictionary pdf exclusive