店主希望校方发明一台有助于记录库存和加快结帐速度的机器。
He wanted the school to invent a machine that would help keep track of inventory as well as speed up the checkout process.
完美的投掷臂在练习模式?记录三镖平均水平，结帐的百分比，总场比赛赢了，还有更多统计信息。
Records three-dart averages, checkout percentages, total games won and many more stats. ? Suggested checkout finishes?
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