完全可以的英文：
be justified in
I experienced an unfamiliar clarity in which I could have added long columns of figures in my head.
有着少有的清晰，完全可以把一长串数字加起来。
Tang Dynasty calligraphy enjoyed the same fame as the Tang Dynasty poem.
唐代书法完全可以和辉煌的唐诗相媲美。
They are perfectly all right.
这些完全可以。
That seems perfectly acceptable.
这似乎完全可以接受。
The tragedy was entirely avoidable.
那场悲剧是完全可以避免的。
And in some ways, this is completely understandable.
在某些方面，这是完全可以理解的。
You may well say so.
你完全可以这样说。
That seems perfectly acceptable .
这似乎完全可以接受的。
True synonymsare entirely interchangeable (with one another)
真正的同义词是完全可以(彼此)互换的.
This is a world pioneering effort that fully deserved a Nobel Prize.
它领先世界，是完全可以得到诺贝尔奖的成就。
adj. 有正当理由的，合乎情理的
v. justify的过去式和过去分词；证明…有道理
Justifying a fault doubles it
护短是加倍的错误
The act was barely justified by the circumstances.
这些情况不足以证明这一行为是正当的。
The language is stern and the reason for it is justifiable
辞严义正
At the time the justifiability of the case is not obvious.
当时，这个案件的可辩明性不明显。
It rests with management to justify their actions.
管理部门应该为他们的行动说出个道理。