...re they stay as bouncy as possible在锦标赛中每几局比赛过后就会换新球,以确保球保持尽可能好的反弹性能 Service box 发球区 the area where players serve into 球员发球的落点区 ..
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Convenience service box 便民服务箱
electronic-service-box 伺服电子箱
ASB Area Service Box 区域服务电子盒
supply company's service box 电力公司的供电箱
service box for communication signal 通信信号设备箱
Safe Deposit Box Service 保管箱业务
mail box service 电子邮箱服务
e-mail box service 电子信箱业务
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