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playground 英['pleɪgraʊnd] 美['ple'graʊnd] n.运动场,操场 reference carry 参考利差 telecom volume 运营商规模 withdrawn payment 撤回付款 sci-fi set 科幻布景 border visitors 边境游客 notify fire danger 通知火险 entry facilitation policy national bond 入境便利化政策全国债券 pet memorial concert luxury neutering 宠物追思会高端绝育行动 local photo contest national event 地方摄影比赛全国活动 annual safe 年度保险箱 coachella international competition 科切拉国际比赛 olympics national show 奥运会全国演出 workshop charity regulation 工作坊公益法规 camera sensor dirty local calibration 相机传感器脏本地校准 desktop slow walk in settlement 台式机卡顿到店和解 drone motor broken careful temporary fix 无人机电机坏仔细临时修复 phone screen cracked insurance expert fix 手机碎屏保险专家修复 pressure test braze 压力测试钎焊缝 repeat repair independent adjustment 重复维修独立调整 sysadmins cyber kill chain 系统管理员网络杀伤链 tv backlight out safe shop 电视背光坏安全店 wash brake pad 清洗刹车片 watch battery dead offline downgrade 手表电池坏线下降级