n a valve that regulates the supply of fuel to the engine
n a pedal that controls the throttle valve
v place limits on (extent or access)
v kill by squeezing the throat of so as to cut off the air
v reduce the air supply
n. 节流阀, 节气阀, 喉咙
vt. 扼喉咙, 使窒息, 压制, 使节流
vi. 窒息, 节流, 减速