This text is for questions 13 to 15. Have you ever used a glue gun? Is it a dangerous weapon? No, it is not a weapon and it is not even dangerous at all This is a tool for helping us stick items such as wood, metal paper, plastic, and so on with the form of a gun. The heat from the gun will melt the glue stick and turn it into liquid that we usually use for sticking those items. Here are several steps in operating a glue gun. First; check the glue gun from any old glue clogging in the nozzle, if there is any, you may clean it. After the nozzle is clean, you can insert a glue stick into the nozzle of the gun. Second, plug the gun's cable into a power outlet. Make sure that the cable is plugged safely in the power outlet. Wait for a minute for making the glue gun warmer. When the glue gun is warm enough, you may squeeze the trigger gently to make the glue stick has changed into liquid form. Finally, when the glue has transformed into liquid form, you can apply the glue to the thing you want to stick using this glue gun. This glue gun is available for any surface and material such as wood, metal paper, plastic, and so on. "First, check the glue gun from any old glue clogging in the nozzle .... " What does the underlined word mean?

Question

This text is for questions 13 to 15.

Have you ever used a glue gun? Is it a dangerous weapon? No, it is not a weapon and it is not even dangerous at all This is a tool for helping us stick items such as wood, metal paper, plastic, and so on with the form of a gun. The heat from the gun will melt the glue stick and turn it into liquid that we usually use for sticking those items. Here are several steps in operating a glue gun.

First; check the glue gun from any old glue clogging in the nozzle, if there is any, you may clean it. After the nozzle is clean, you can insert a glue stick into the nozzle of the gun.

Second, plug the gun's cable into a power outlet. Make sure that the cable is plugged safely in the power outlet. Wait for a minute for making the glue gun warmer. When the glue gun is warm enough, you may squeeze the trigger gently to make the glue stick has changed into liquid form.

Finally, when the glue has transformed into liquid form, you can apply the glue to the thing you want to stick using this glue gun. This glue gun is available for any surface and material such as wood, metal paper, plastic, and so on.

"First, check the glue gun from any old glue clogging in the nozzle .... " What does the underlined word mean?