He'd call on people around the room, and always think on his feet to answer their questions without hesitating.

他会指名在屋子各处的记者让他们提出问题，并且总能迅速地、毫不迟疑地做出回答。

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A leader is able to think on his feet, gather all available information, decipher the facts, and use some good common sense to come up with a workable solution.

领导者能够快速地思维，能够收集所有可以获得的信息，分辨出事实，并且运用一些常识拿出一个行得通的解决方法。

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Grantham says. "The first one kind of choked on it, but Peter danced around the minefield like a tap dancer. I thought, 'That guy can really think on his feet."

他讲“我在会议上遇到两个超级定量员，第一个有点噎住似的，但彼特就像一个在雷区里跳舞的踢踏舞者那样游仞有余，我当时就想这人会脚踏实地”。

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Romney handled these attacks well but faltered when he had to think on his feet on a few occasions, specifically when Rick Santorum challenged him on subject of felons being able to vote again after they complete their sentences and probation.

FORBES: Connect

Just as predictably, his weaknesses were stultifying rhetoric (phrases such as "net inward migration" and "proportional representation list system" abounded) and an inability to think on his feet (he struggled to respond to Mr Cameron's frequent attacks on his tax plans).

ECONOMIST: The daily take

He could think very well on his feet.

BBC: Fleming a tough act to follow