sap /sæp/ TEM4 ( sapping, sapped, saps )

• 1. 

  V-T If something saps your strength or confidence, it gradually weakens or destroys it. 消耗; 削弱

  例：

  I was afraid the sickness had sapped my strength.

  恐怕这场病已经消耗了我的力气。

• 2. 

  V-T to undermine (a fortification, etc) by digging saps 挖地道以摧毁(工事等)

• 3. 

  N-UNCOUNT Sap is the watery liquid in plants and trees. (植物的) 汁液

  例：

  The leaves, bark and sap are also common ingredients of local herbal remedies.

  树叶、树皮和树液也是当地草药疗法的常用药材。

• 4. 

  N-COUNT a gullible or foolish person 容易上当的人 [slang]

• 5. 

  N-COUNT energy; vigour 精力

• 6. 

  N-COUNT a deep and narrow trench used to approach or undermine an enemy position, esp in siege warfare 地道