Fully means to the greatest degree or extent possible.
She was fully aware of my thoughts.
她完全了解我的想法。
You use fully to say that a process is completely finished.
He had still not fully recovered.
他还没有完全康复。
If you describe, answer, or deal with something fully, you leave out nothing that should be mentioned or dealt with.
Fiers promised to testify fully and truthfully.
菲尔斯承诺将毫无保留地如实作证。