打下

• Faber found his boastfulness irritating. "how many enemy aircraft did you shoot down? "
  费伯被他的吹嘘激怒了。“你打下几架敌机呢？”
• Their observations laid the ground work for our present understanding of the universe .
  他们的观测给我们现代对宇宙的了解打下了基础。
• I still shudder to think what would have happened if i'd been shot down and survived .
  一想起那回万一给打下来活捉了去，我还打哆嗦呢！
• Repose and security in her age, had set their stamp on her lined and serene face .
  晚年的悠闲和保障都在她那布满皱纹、安详的脸上打下了烙印。
• It tore them violently out of their sleep as if an electric charge had bored through them .
  仿佛人群里打下一个带电的霹雳，他们都猛地给震醒了。
• They aspired to national and european foundations that had few roots in italian history .
  他们渴望在全国和欧洲打下基础，而这在意大利历史上却没有什么根基。
• To my mind it accords better with what we know of the laws impressed on matter by the creator .
  我却认为与我们所知道的“造物主”在物质上打下烙印的法则更为符合。
• Cases are known where trioecy or, more generally, heteroecy, provides for an optimal mating system .
  众所周知，单全异株，或者更通俗一些说，雌雄杂生为最适交配打下基础。
• Under all circumstances we will continue this battle until our damned enemies get too tired to fight any more .
  我们不管怎样都要继续打下去，要一直打到该死的敌人个个精疲力竭，不能再战为止。
• And they both plunged into an interminable game
  于是，两个人没完没了地打下去。