可是

• I'm ancient, but i don't feel it .
  我是老了，可是自己不感觉老。
• One man's meat is another man's poison .
  一个人的美食，可是另一人的毒药。
• Yet to calculate is not in itself to analyze .
  可是计算本来并不等于分析。
• But he liked to impress his fellow workers .
  他可是喜欢在同事面前摆阔气。
• Within a single year all this was changed .
  可是不到一年，便一切都变了样。
• We have only three books when we need five ..
  我们要五本书，可是只有三本。
• But you mustn't squander your money .
  可是你也不能胡乱花钱啊。
• But it's the kind of thing i can't permit .
  可是这种事情我却不能听之任之。
• But he still did not feel safe enough .
  可是他还觉得不够安全。
• But he had not been able to afford more .
  可是他没有能够加码。