They found there was only a rusty knife-blade in the box.

他们发现箱子里只有一把生锈的小刀刀刃。

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The blade of the knife glinted in the darkness.

刀刃在黑暗中亮了亮。

《牛津词典》

Use this knife to chop, slice and mince; the side of the blade can be used for crushing garlic and some spices.

用这刀剁碎、切片或切碎物体；刀片侧面可以用于压碎大蒜和一些香料。

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Audetat also found a foldable knife with a 4-inch blade in Loughner's front pocket.

CNN: SHARE THIS

To test that theory, CNN has learned prosecution investigators snuck a knife with a five-inch blade through an X-ray machine at Los Angeles Airport without getting caught.

CNN: What the jury didn't see