PHRASAL VERB 减速;调节油门使减速 If you throttle back, or you throttle back the engine, when driving a motor vehicle or flying an aircraft, you make it go slower by reducing the quantity of fuel entering the engine. 减速;调节油门使减速
The pilot throttles back slightly to maintain level flight. [VERBPREP.]
飞行员稍稍减速,以保持水平飞行。
He stepped swiftly to the controls to throttle back the engine. [VERBPREP. noun (not pronoun)]