jump-start

jump-start
['dʒʌmpstɑ:t]
跳线跨接起动
v [Tn] start (a car) by pushing or rolling it and then engaging the
gears instead of using the starter.
also jump AmE
to start a car whose battery has lost power by connecting it to the
battery of another car
to help a process or activity to start or become more successful
Congress hopes the tax cut will jump-start the economy.

To start (the engine of a motor vehicle) by using a booster cable
connected to the battery of another vehicle or by engaging the drive
train while the vehicle is rolling downhill or being pushed.
Informal. To start or reinvigorate (an activity, system, or process):
“struggled to jump-start his once front-running… presidential
campaign” (Susan Feeney).

jump start n [C]
The act, process, or an instance of starting a motor vehicle by using
a booster cable or suddenly releasing the clutch while the vehicle is
being pushed.
Informal. The act or an instance of starting or setting in motion a
stalled or sluggish system or process.

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