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vi. ��ˮ������
vt. �ȹ⣬�ľ���ʹ�������ŵ�ˮ
n. ��ˮ����ˮ������ˮ�ܣ�����

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n. drainage��drainpipe��waste pipe
v. debilitate��enfeeble��run out

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1. Drain the wound (of blood )before you apply the bandage.
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2. Oh, no, the drain just swallowed him.
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3. Instead it would drain your energy and dissuade you.
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n.
  1. emptying something accomplished by allowing liquid to run out of it
  2. tube inserted into a body cavity (as during surgery) to remove unwanted material
  3. a pipe through which liquid is carried away
  4. a gradual depletion of energy or resources
v.
  1. flow off gradually
  2. deplete of resources
  3. empty of liquid; drain the liquid from
  4. make weak

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drain
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brain drain
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drain tap
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covered drain
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drain funnel
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