the day before yesterday前天Dr. Smith looked in on the invalid the day before yesterday.史密斯大夫前天去看望那个病人.The accident happened the day before yesterday.那意外事故发生在前天....
其中管式离心机属国内先进机型, 靠近国际水平.One tube is a domestic advanced centrifuge model, close to international standards.公司拥有属国外首创,具有国际先进水平的新型运输包装箱--刚性中型散装容器.The company supplies pioneer and advanced new - type packing boxes of bulk ca...