seal up
Mittelstufe (B1) neutral
To close something so tightly that nothing can get in or out
"She sealed up the envelope and left it on his desk."
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Magnetic gel injected into the heart could stop strokes
nature video · 1:59
could seal up the appendage preventing
Here's What a Professional Workshop Did to This Old Mercedes E55 AMG
M539 Restorations · 53:52
against the cover or the seal up against
The Unsolved Mystery of Impact Flashes - Smarter Every Day 307
SmarterEveryDay · 39:06
I'm going to seal up all the Argon leak holes.
Nature's Incredible MOTOR - Smarter Every Day 300B
Smarter Every Day 2 · 38:12
they seal up and they don't have enough space for that water molecule to go