这是

• "this is a painful task," said he .
  “这是一份不愉快的差事，”他说。
• This is a key point that is often overlooked .
  这是常被忽略的要点。
• The agents of goldstein had been at work !
  这是戈尔斯坦的特务搞的！
• Don't thank me; it's an honest appraisal .
  不必谢我，这是诚实的评估。
• I must say it was a very decent letter .
  我得说这是一封很体面的信。
• It's disease of the last five thousand years .
  这是五千年来的病症。
• It's something you should keep quiet about .
  这是件需要你保密的事。
• I thought it a case of some delicacy .
  我觉得这是件相当伤脑筋的事。
• This is the only and sovereign agent .
  这是唯一的，至高无上的起因。
• This is the truth in so far as i know it .
  就我所知，这是真实情况。