once

• It is expedient that he should go away at once !
  他最好还是立刻走掉。
• Lighting fixture must be installed at once .
  必须立即安装照明设备。
• This illegal activity was once commonplace .
  这种非法活动曾一度流行。
• Mr. collins, i was once an alcoholic .
  柯林斯先生，我过去是个酒鬼。
• How would we cope once the money had gone ?
  钱一用完，我们怎么办？
• At once his suspicions were all aroused .
  他一下子满腹狐疑起来了。
• There is no objection to your leaving at once .
  你现在即刻走也不碍事。
• Participants were contacted once yearly .
  对受观察者一年访问一次。
• It is the american renunciation once more .
  这又是美国的遁世主义。