(of a person) prompt to understand, think, or learn; intelligent.
it was quick of him to spot the mistake
同义词：
intelligentbrightclevergiftedablebrilliantastutequick-wittedsharp-wittedreadyquick off the markobservantalertsharpwide awakereceptiveperceptiveinformal：brainysmarton the ballon one's toesquick on the uptakegeniuswhip-smart
副词
1
at a fast rate; quickly.
he'll find some place where he can make money quicker
名词
1
the soft tender flesh below the growing part of a fingernail or toenail.
