坑道的英文：
SAP

参考例句：
  • To dig a sap.
    挖掘坑道
  • The tunnel contract to a narrow passageway as you go deep
    再往里走, 坑道缩小成了一条窄窄的通道
  • exploratory tunnel drilling method
    勘探坑道掘进方法
  • horizontal exploratory tunnel supporting
    勘探水平坑道支护
  • exploratory tunnel
    地下勘探坑道
  • The roof of the tunnel was supported by wooden props
    坑道顶用木柱支撑。
  • They are ventilating the sap of a coal mine
    他们正在使煤矿坑道通风。
  • ventilation and drainage of exploratory tunnel
    坑探勘探坑道通风排水
  • A tunnel dug under an enemy emplacement to gain an avenue of attack or to lay explosives.
    地雷坑道为了进攻或安放炸药而在敌人防御工事下挖掘的坑道
  • A tunnel dug to intercept and destroy an enemy's mine.
    对抗地道截断或破坏敌人坑道而挖的地道
sap是什么意思：
n. 液，汁；傻瓜；精力，活力；坑道
v. 削弱；挖坑道；挖掘以破坏基础
  • sap wood sleeper
    边材木枕
  • interior sap stain
    边材内部变色
  • The criticism sapped his determination.
    批评削弱了他的决心。
  • It will sap the base of a building.
    它会逐渐侵蚀建筑物的基石。
  • It was the beginning of the spring and the sap was rising in the boys
    正当初春季节，勃勃的生气在小伙子们身上奔涌。

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