日期：
来源：雅诚德英语网
Now being studied to speed up the pace, the latest achievement has been to speed up the detection time to 2-3 days.
现在正在研究加快这个速度，最新成果已经把检测时间加快到2 - 3天。
Now being studied to speed up the pace, the latest achievement has been to speed up the detection time to 2-3 days.
现在正在研究加快这个速度，最新成果已经把检测时间加快到2 - 3天。