They made a positive impact.
Meaning: This means someone created or produced a good or beneficial effect or influence on someone or something.
Choice of Words: Made means to create or produce something. Positive means having or showing a good or beneficial effect or influence. Impact means a marked effect or influence on someone or something. When you put them together, "Made a positive impact" means someone created or produced a good or beneficial effect or influence on someone or something.
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Related Expressions