He behaved like a seriously odd person, talking off the top of his head.
他表现得像个怪人，说话不加思索。
He sliced the top off his finger while he was cutting vegetables.
他切蔬菜时不小心削了手指尖。
Jeremy answered that difficult question off the top of his head.
杰里米想也没想就回答出那个难题。
Jeremy answered that difficult question off the top of his head.
杰里米想也没想就回答出那个难题。
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