He took a thick knife out of his pocket and opened one of its blades.
他从口袋里掏出一把厚实的刀，打开了其中一枚刀片。
At the top of the stairs he drew from his pocket another key, with which he opened another door.
到了楼梯顶上，他又从衣袋里取出另外一把钥匙，用来开另一扇门。
He went to this table with a sort of vivacity, took a key from his pocket, and opened the valise.
他迅速走向圆桌，从口袋中取出一把钥匙，把小箱子打开。
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