base

• There was heavy cloud and a lowering cloud base .
  阴云密布，而且云层愈来愈低。
• It is based on a constant pressure .
  它是根据恒压得到的。
• The sea laps the base of the cliff .
  海水轻拍断崖的底部。
• A base is the hydroxide of a metal .
  碱是金属的氢氧化物。
• The sea laps the base of the cliff .
  海浪拍打悬崖的底部。
• Nearly all spanish joking had that same base .
  西班牙人插科打诨的方式大抵如此。
• You cannot enter a military base without a permit .
  无通行证者不得擅入军事基地。
• He mounted their engines on a rubber base .
  他把他们的发动机装在一个橡胶垫座上。
• You are a bit off base there .
  你在那个地方有点不对头。
• The mounting is fixed to the base .
  支架固定在基座上。