是perfectly:
adv. 完美地；完全地；无瑕疵地
Their needs fit perfectly.
他们的需求完美契合。
What I did was perfectly legal.
我做的事情完全合法。
That's a perfectly legitimate fear.
那是种完全合乎逻辑的恐惧。
I knew perfectly well what she meant.
我完全懂她的意思。
You know perfectly well what happened.
你完全清楚发生了什么。
It's perfectly normal to feel like this.
有这样的感觉是完全正常的。
