单词	衰减极限
释义	衰减极限 fading margin
随便看	an impecunious student an impediment or a delay an impediment to an impediment to reform An impelling or restraining force An impelling or restraining force; a compulsion An impending battle an impending cliff an impending danger an impending disaster an impending evil An impending storm an impenetrable difficulty an impenetrable equatorial forest An impenetrable fortress An impenetrable heart an impenetrable jungle/fortress an impenetrable mystery an impenitent criminal an imperative duty an imperative gesture an imperative manner an imperative tone an imperative tone of voice an imperceptible change