ha

• This approximation has been discussed earlier .
  这个假定以前讨论过。
• He has gone through three packs of cigarettes .
  他已经吸光三包香烟。
• His original enthusiasm has turned sour .
  他当初的积极性已淡下去了。
• The water-table has been lowered by drought .
  地下水位因干旱已降低。
• He must soon know what has happened .
  他肯定很快就会知道发生的事情？
• The guilty virus has yet to be identified .
  这种致病的病毒尚待查明。
• The child has musical talent [a gift for music] .
  这孩子有音乐天才。
• She has put herself in a false position .
  她把自己摆在尴尬的地位上。
• He has to be pleased with the results .
  他不得不对这些成绩感到满意。