seal up
中级 (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."
在语境中听
I Went UNDERCOVER in *EVERY* Custom Lobby!!
TG Plays · 89:17
Seal up.
The Wild Story of the Teton Dam Failure
Practical Engineering · 5:54
to try and seal up the porous rock with grout.
Home Inspector Answers House Safety Questions | Tech Support | WIRED
WIRED · 9:45
I would seal up the floor and call in professional
My Dad Can't Stop My Secret Sleepover
Jordan Matter · 11:38
While you're in there, before we seal up this wall,
The Unsolved Mystery of Impact Flashes - Smarter Every Day 307
SmarterEveryDay · 39:06
I'm going to seal up all the Argon leak holes.