| 单词 | throttle back | 
| 释义 | throttle backphrasal verbSee full dictionary entry for  throttle 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.  The pilot throttles back slightly to maintain level flight. [VERB PARTICLE]  He stepped swiftly to the controls to throttle back the engine. [VERB PARTICLE noun (not pronoun)] | 
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