at-once

基本解释

• adj.立即的

同根派生

英汉例句

• It is necessary that he be sent there at once.
  有必要马上派他到那里去。
• Such evil practice cannot be swept away at once.
  这种坏事不是一下能扫除干净的。
• The teacher asked the pupils not to speak at once.
  老师叫学生们不要同时说话。
• At once he slew him and set Io free.
  他立刻杀死了阿尔戈斯，放掉了伊俄。
• Go at once, or I will unleash my dog on you!
  立刻走，要不我就放我的狗咬你！