aces
abbr.
adjustable convertible-rate equity security (units) 可调节的股本证券兑换率;
aircraft ejection seat 飞机弹射座椅;
automatic control evaluation simulator 自动控制评估模拟器;
n.
擅长…的人( ace的名词复数 );
精于…的人;
（ 网球 ）（对手接不到发球的）发球得分;
爱司球;
例句:
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Hobby Hobbies are the flying aces among falcons.
来自BBC
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The American served three aces in the opening game of the set.
这位美国选手在该盘首局有三次发球直得。
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The Uruguayan-born big-hitter smashed 28 aces.
这位乌拉圭出生的重炮手轰出了28记爱司球。
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"When I was an adolescent," says a thirty-one-year-old man, "I thought girls held all the aces."
“当我还是个毛头小伙儿时，”一个31岁的男人说，“我觉得完全是女孩子说了算。”
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Townsend has a few aces up his sleeve as well.
来自THETIMES
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Cole Hamels and Cliff Lee are legitimate aces.
来自WSJ