book 4 unit 5 Using language(18)

3. up-to-date: (adj.) modern 新近的, 现代的, 新式的

This factory uses the most up-to-date methods to make machines. out of date 过时的, 废弃的 up to the minute 最现代的, 最时新的 date from / back to… 追溯到; 开始于 It was a modern factory--everything was really up-to-date.