upgrading造句
Many people are
upgrading their mobiles to top-end models.
很多人不断将手机升级到最高档的款式。
Practical application results are perfect after the well done
upgrading.
改造实施后达到理想的使用效果.
The thesis explains investment decision of R & D
upgrading through case analysis finally.
最后通过案例分析进一步阐释R & D升级投资的投资决策.