俚语switch的意思解释和用法例句

switch（美国俚语）n.刀或弹簧小折刀

用法及例句：
They found a switch in his pocket when they searched him.他们搜他身时，发现他的口袋里有一把刀。v. [黑社会用语](向警方)告密

用法及例句：
We were pretty sure that Tracy is the one who switched.我们十分肯定，就是特蕾西告的密。

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