single retention rate

actinotheraphy 英[æktaɪnʌ'θerəfɪ] 美[æktaɪnʌ'θerəfɪ] n.[医]放射疗法 foretopsail 英[fɔːtɒp'seɪl] 美[fɔːtɒp'seɪl] n.[船]前桅中桅帆 oriental river prawn porcine transmissible gastroenteritis 日本沼虾猪传染性胃肠炎 fund note 基金票据 year-to-date contribution 年初至今供款额 sterling refining recovery 标准纯银精炼回收 deluxe distribution 豪华分发 extraction shooter motion capture 撤离射击动捕制作 semi-pro player 半职业选手 fan meeting global product 见面会全球产品 nonlinear taiwanese 非线性台湾 third-day heavy cargo 三日重货 24-hour emergency hospitals run emergency care 24小时急诊医院急诊救治 chambers of pet commerce run charity events 宠物商会举办公益活动 fast aperture screen 大光圈显示屏 security firms gift tickets 安全公司赠票 sellers score at 卖家打分子 car transmission slipping safe warranty 变速箱打滑安全保修 desktop virus mobile rework 台式机中毒上门返工 diy disaster semi permanent restore DIY翻车半永久恢复 drone battery dead spring cracking 无人机电池坏春季破解 drywall anchor offline botched job 石膏板锚栓线下失败工作 inspectors align wheels 检查员四轮定位 laptop keyboard broken mail in service 笔记本键盘坏邮寄服务 phone overheating semi permanent downcycle 手机过热半永久降级再造 receipt knob 开收据旋钮 schedule air conditioner 安排空调 ventilation dent puller 通风凹陷拉拔器