Airline passengers may not carry a pistol in their checked baggage without a permit.

航空乘客若無許可證，不得在托運行李中攜帶手槍。

The security firm is hiring guards who are licensed to carry a pistol on duty.

這家保全公司正在招募持有執照、可於執勤時配戴手槍的警衛。

Customs officers found an unregistered pistol hidden inside the shipping container from overseas.

海關人員在來自海外的貨櫃中發現一把藏匿的未登記手槍。