| 释义 | downhill I. \ˈ ̷ ̷ˌ ̷ ̷\ noun
 Etymology: down (IV) + hill
 1.
 a. archaic  : the slope toward the bottom of a hill : declivity, descent
 b.  : a descending gradient (as in circumstances or human existence)
 < the tragic downhills that bring many promising careers to an end >
 2. [downhill (II) ]  : a competitive ski event consisting of skiing down a trail against time
 II. \ˈ ̷ ̷| ̷ ̷\ adverb
 Etymology: down (III) + hill
 1.  : toward the bottom of a hill
 < traveling downhill we really got up speed >
 2.  : toward a lower, poorer, or inferior state or level — used especially in the phrase go downhill
 < the town has gone downhill since the mill closed >
 < after he retired he went downhill very rapidly >
 III. \ˈ ̷ ̷ˌ ̷ ̷\ adjective
 Etymology: downhill (II)
 1.  : sloping downhill
 2. [downhill (II) 2]  : of, relating to, or designed for use in skiing downhill
 < a leading downhill contestant >
 < attractive downhill trousers >
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