to raise something suddenly and sharply
突然大幅提高某物 (turan dafu tigao mou wu)
"They might jack up ticket prices before the holidays."
"他们可能会在假期前提高票价。" (tamen keneng hui zai jiaqi qian tigao piao jia)
to dismiss or refuse something with a gesture or comment
to feel very good or confident
the largest portion of something
to stop being upset and start feeling better
To spend all your time studying
something that completely changes the way things are done