Air travel between countries is the fastest,but not all cargo can betransported by air,so its important to know what cannot be air shipped.

Prohibited dangerous goods

Output:

Hazardous materials refer to flammable and explosive items such as alcohol,gasoline,gunpowder,detonators,as well as corrosive,toxic,and radioactive substances.Additionally,all international air transport prohibits the carriage of items bearing hazardous markings and those related to "firearms and weapons" on aircraft.

Certain medications cannot be transported

Output:

According to relevant aviation regulations,not all medications can be transported internationally by air.For example,some highly toxic drugs,psychotropic substances,and narcotics such as cocaine,marijuana,and arsenic cannot be transported internationally.