adv.彻底地;认真仔细地;完全地;非常;
例句:
a thoroughly professional performance
地道的专业表演
After Mr Wimpenny had the plane built, it was tested thoroughly.
温佩尼先生把飞机制造好之后, 对飞机进行了彻底的试验.
I'm thoroughly confused.
我完全给搞糊涂了。