sap /sæp/ star1 TEM4 (sapping,sapped,saps)

• 1.  

  V-T（及物动词） 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（及物动词） to undermine (a fortification, etc) by digging saps 挖地道以摧毁(工事等)
• 3.  

  N-UNCOUNT（不可数名词） 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（可数名词） a gullible or foolish person 容易上当的人 [slang]
• 5.  

  N-COUNT（可数名词） energy; vigour 精力
• 6.  

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