dwindle

dwindle
verb
  1. [no obj.]diminish gradually in size, amount, or strength
    (尺寸、数量或力量上)逐渐变小,缩小;减少;减弱,衰退
    traffic has dwindled to a trickle.
    来往车辆已减至涓涓细流了。
    [as adj. dwindling]dwindling resources.
    逐渐减少的资源。
语源
  1. late 16th cent.: frequentative of Scots and dialect dwine 'fade away', from Old English dwīnan, of Germanic origin; related to Middle Dutch dwīnen and Old Norse dvína
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