n. one of four playing cards in a deck having a single pip on its face
n. someone who is dazzlingly skilled in any field
n. a serve that the receiver is unable to reach
v. score an ace against
n. 幺点, 好手, 少许, 发球得分
a. 一流的, 杰出的
[计] 应答允许, 自适应计算机试验, 自动呼叫设备, 自动执行控制