徒劳无功

• Glyn ： i ' ve just been to the library but had no luck at all
  格林：我刚刚去过图书馆，但是徒劳无功。
• I scoured this damn country for 42 days in vain
  我找了42天，把这个国家翻了个底朝天，依然徒劳无功！
• All our efforts were mockeries
  我们的一切努力都徒劳无功。
• We cannot proceed without the support of any of them
  不承认政制发展须要三方面推进，一切最后都徒劳无功。
• The wind cannot be caught in a net
  撒网捕风,徒劳无功
• So far , to no avail
  不过迄今为止，他们仍然徒劳无功。
• The doctors tried everything to keep him alive but to no avail
  医生们曾竭尽全力抢救他的生命,但却徒劳无功
• The doctors tried everything to keep him alive but to no avail
  医生们曾竭尽全力抢救他的生命,但却徒劳无功
• It ' s no use pumping a dry well
  枯井抽水,徒劳无功
• They vainly tried to find out the stranger ' s name and occupation
  他们想查出那陌生人的姓名职业，但徒劳无功。