pock·et·knife /ˈpɑkətˌnaɪf/
隨身小折刀
Pock·et·knife n.; pl. -knives A knife with one or more blades, which fold into the handle so as to admit of being carried in the pocket.
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pocketknife
n : a knife with a blade that folds into the handle; suitable
for carrying in the pocket [syn: pocket knife]
[also: pocketknives (pl)]