pocket knife

基本解释

If I take a pencil and I take my pocket knife... So here is a pencil.
拿一支鉛筆，這是我的小折刀。,這是鉛筆。
And I take my pocket knife and I put the knife, I jam my knife in here. So this is the knife.
我拿起小折刀，把它觝在這裡，把刀觝在這裡，這就是那刀。
But Polce says she can't understand why the officers found it necessary to kill her son, who she describes as 5'3" tall, 118 pounds and armed with only a folding pocket knife.
但是Polce說，她不能理解爲什麽警方人員一定要殺死她兒子——這個衹有5英尺3英寸高，118磅重，手裡僅持一把可折曡小刀的男孩兒。

Murrah building to amputate a woman's leg with a pocket knife, was a persuasive witness.
FORBES: Magazine Article
Remember, the only American merchant ship ever almost taken by pirates defeated the pirates with a pocket knife.
FORBES: How Is The Shipping Industry "Pirate Proofing" Their Fleets?
The bartender had a pocket knife on the counter.
NEWYORKER: Hellhole

A pocket knife is a small knife with several blades that fold into the handle so that you can carry it around with you safely.