When does your trade agreement with Japan expire?
你们同日本签
贸

何时期
?
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
分钟英语 Here's Professor Mark Miodownik, a material scientist at University College, London, explaining more to BBC World Service programme, People Fixing The World: As the millennium turned, patents expired and that meant people started making very cheap 3D printers.
伦敦大学学院的材料科学
马克·米奥多尼克教授,向BBC全球服务节目People Fixing The World解释了更多:随着千禧年的到来,专利过期了,那意味着人们开始制造非常便宜的3D打印机。