一旦

• Once a great nation commits itself, it must prevail .
  一旦一个大国对一件事作出了承诺，它就必须取得成功。
• If [when] one loses confidence , he can never expect to do his work well .
  一旦失去信心，就甭想做好工作。
• Once a stable government is set up, we should take our departure .
  一旦成立了稳定的政府，我们就应当撤离。
• Once they discovered it, a rush for the new gold was on .
  他们一旦发现了这种黄金，就会向这新金矿蜂拥而来。
• The currents that have been released are not going to subside .
  滚滚洪流一旦破闸而出，只会向前，不会止息。
• When my aunt has got a fancy in her head, nothing can stop her .
  我姨妈一旦起了什么念头，她是决不肯罢休的。
• When she had once set upon anything, the family failed before her .
  一旦她决意做一件事，整个家庭都无法更改。
• If we once lose sight of him , we shall never set eyes on him again .
  倘若我们一旦丢了他，就再也找不着他了。
• If the story once got abroad, i would never hear the last of it .
  要是这个奇闻一旦传出去，就会谈个没完没了。
• If i were to be, i would step down and raise my voice immediately .
  一旦我弄清楚了，我会立即辞职站出来表态。