It is common practice to make a back-up file for our documents.
惯常做法是为正本另立一个后备档案。
These documents usually represent a leading edge, exceptional model, or a proven industry practice.
这些文献通常代表前沿、杰出模型或者成熟的行业实践。
These documents usually represent a leading edge, exceptional model, or a proven industry practice.
这些文献通常代表前沿、杰出模型或者成熟的行业实践。
应用推荐