step on
动词- To adulterate (a drug) for the purpose of increasing its bulk, and therefore the profit when sold; to dilute, cut.
- To oppress or mistreat (a person).
- To interrupt, overpower, or override (another transmission on the same frequency) with one's own transmission.
- To approach as to confront or fight. · He stepped on to the vicious man.
- To intrude on someone else's turf or portfolio. · They're stepping on our operations.
- Used other than figuratively or idiomatically: see step, on. · He stepped on a rock.
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We’ve had the bicycle identified, and we have a description of our man; so that’s a long step on our journey.”
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