唔係個個都正正經經做生意，買嘢、俾錢、出糧都唔係必然... 唔合法叫"打劫"，咁有時呢啲"合法既打劫...

唔係個個都正正經經做生意，買嘢、俾錢、出糧都唔係必然... 唔合法叫"打劫"，咁有時呢啲"合法既打劫"叫乜呢？

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