Press your lips together to stop the air, then release. No vocal cord vibration.

Americans pronounce preserve as pruh-ZURV (/prəˈzɜrv/). Stress falls on the second syllable — keep everything else short and quick. You'll hear it in sentences like "The scrapbooking project allows me to preserve family memories" or "The restoration team worked carefully to preserve the ancient fresco" — more examples below.
Record yourself saying "preserve" and play it back. The mic stays on your device — nothing's uploaded.
2 syllables, 6 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
Press your lips together to stop the air, then release. No vocal cord vibration.

Curl or bunch your tongue without letting the tip touch the roof of your mouth. Brace the sides of your tongue against your upper back teeth, and round your lips slightly.
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
Same position as S, but add vocal cord vibration. Feel the buzz.

Flare your lips and push them away from the face. Lift the middle of your tongue toward the roof of the mouth.

Lift your bottom lip so its inner edge (where the wet part meets the dry part) touches the very bottom of your top front teeth. Add vocal cord vibration as you blow air through.

Click any sentence to see the full breakdown — every link, every reduction, every flap-T.
The textbook way isn't wrong — it's just not how anyone actually says it.
Stress falls on the second syllable, not the others. Stretch ZURV — keep everything else short and quick.
Don't pronounce the first syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.
Americans use a relaxed retroflex R — the tongue curls back rather than rolling. The R is one continuous sound with the vowel before it, not two separate sounds.