Simple drawing syringe

Step one:

Step 2:
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Then draw a long rectangle in the gap.

Step three:
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Then draw a small rectangle on it and draw a line to represent the needle tube.

Step 4:
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Draw a long strip and a small rectangle on the tail as a propeller.

Step 5:
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You can also use short lines to draw scales on the syringe, paying attention to the length.

Step 6:
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In front of the needle tube, you can also draw a few water droplets.