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Dropping serum, gel, oil or other cosmetic products from a pipette.
Multi-colored fish swim in the red sea near a coral reef. Diverse schools of fish for diving and freediving at seaside resorts in Egypt.
Professional scientist bring colored solution or chemical liquid doing experiment at laboratory. Skilled teacher bring biological sample to look under microscope in STEM science class. Erudition.
The nature of the waterfall in the forest that flows strongly during the rainy season. Strong current in the river, waters turned muddy after heavy rains in autumn.

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