加ing: perfecting
v. (使)完美,完善(使)完全,完成双面印完(一页纸)(使)合法转移(perfect 的现在分词)
Moreover, perfecting stealth technology takes time.
此外,完善隐形技术需要时间。
The iPad needed announcing and then last-minute perfecting.
iPad需要一个完美的问世。
I hope today is another perfect day.
我希望今天又是美好的一天。
We need more people to perfect the plan.
我们需要更多人来完善这个计划。
This English beginner doesn't know how to use the perfect yet.
这个英语初学者还不大会使用完成时。