基本解释

• n.自动检测和估算系统 (=Automatic Checkout & Evaluation System)

英汉例句

• I tried to get them to change their minds but the opponents to the proposal held all the aces and I was outvoted.
  我想使他们改变主意，但该建议的反对者们却处于支配地位，结果我在投票中失势了。
• She's already served two aces this game.
  她在这一局中已两次发球得分。