To lurch means to make a sudden movement, especially forwards, in an uncontrolled way.
例句
As the car sped over a pothole she lurched forward...車子飛駛過一個坑洼時，她身子猛地向前一傾。Henry looked, stared, and lurched to his feet...亨利看了一眼，頓時瞪大了眼睛，然后突然猛地一下站了起來。
VERB
（在不同的行動、態度之間）左沖右撞，搖擺不定
If you say that a person or organization lurches from one thing to another, you mean they move suddenly from one course of action or attitude to another in an uncontrolled way.
例句
The state government has lurched from one budget crisis to another...州政府陷入一個又一個的預算危機。The first round of multilateral trade talks has lurched between hope and despair.首輪多邊貿易談判在希望與絕望間來回搖擺。
PHRASE
棄…于危難之中；對…坐視不救
If someone leaves you in the lurch, they go away or stop helping you at a very difficult time.
例句
You wouldn't leave an old friend in the lurch, surely?你總不會對老朋友見死不救吧？