同义词： case knife
以上来源于: WordNet
N a knife carried in or protected by a sheath 鞘刀
When something took one of his remaining baits, he cut the line with his sheath knife.
当他把剩下的东西饵之一，他与他的削减鞘刀线。
The old man shivered in the cold that came after sunset. When something took one of his remaining baits, he cut the line with his sheath knife.
日落之后，寒意袭人，老人冷得发抖。当他剩下的鱼饵中有一块被咬住时，他就用自己那把带鞘的刀把钓丝给割断了。 。
One day after a trip to a faraway town, he handed me a knife and sheath, saying, “These are for you.
一天，他从一个远方小镇回来，递给我一把刀，“给你的。
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