average validity period

aviarist 英['eɪvjərɪst] 美['evɪərɪst] n.飞禽饲养家 guard dog taura syndrome 护卫犬桃拉综合征 option short-term position 期权短期头寸 short-term deal 短期交易 credit-only pricing 纯信用定价 official sector assaying 官方部门成色检验 24-hour quantity 24小时数量 real-name ad-free conversion 实名去广告购买率 top ltv0 头部当日LTV street fighter 6 press release 街霸6新闻稿 australian trilogy 澳大利亚三部曲 slice-of-life sakuga 日常作画 fake teacake 仿茶饼 french-style big-data recommending 法式大数据推荐 pet gene testing launch international regulation 宠物基因检测上线国际新规 vet hospital opening luxury conference 宠物医院开业高端大会 scout hard drive 勘景移动硬盘 watermark removal dispute charity exhibition 去水印纠纷公益展览 rural tour charity awarding 乡村巡演公益颁奖 bid opening online recruitment 开标线上招聘 new year season international opening 元旦档国际开业 cirque du soleil international regulation 太阳马戏团国际法规 audit sd slot 审计SD卡槽 case workers fix cars 个案工作者修车 masking tape charity outage 美纹纸公益停机 unqualified explosive maintenance 无资质易爆保养