đột ngột tăng cao = abruptly surge = leap to
leap (in sth) (from...) (to...) to increase suddenly and by a large amount
syn: shoot up
The shares leapt in value from 476p to close at 536p.
to jump high or a long way
A dolphin leapt out of the water.
We leapt over the stream.
The horse leapt a five-foot wall.