It can be a noun or it can be a verb. 它既可以作名词也可以作动词。

　　To exit means to leave, and normally, in a public building, a hotel or other areas, “Exit”是“离开”的意思，一般出现在旅馆或其他地方的公共建筑物里，

　　they have a sign that says, "exit," so you know in case there is an emergency how to leave the room or leave the building. 它们里面会有“exit”标识，这样一旦遇到突发事件，你就知道从哪离开房间或建筑物。

　　On an airplane, we have something called the emergency exits, and those are doors that you use if the plane is having problems. 在飞机上，会有所谓的“紧急出口”，它们是飞机出现问题时使用的门。

　　I hope you never have to use the emergency exits. 我希望你永远都不会用到紧急出口。

　　Well, this is an exit from the freeway, and "my office is only a few miles" after I get off of the freeway. 嗯，这是个离开高速公路的出口，在开下高速公路后“我的工作地离高速公路出口只有几英里远。”

　　"I pull into the parking garage," the place at my work where you park or keep your car, and I swipe my key card to get in. “我把车开到停车场”，它是你上班停车的地方，然后刷钥匙卡进停车场。

　　A key card, "key card," (two words) is like a credit card. 钥匙卡（key card）（两个字）就类似于信用卡。

　　It's an electronic card that the company gives you that allows you to get in and out of a garage, 它是公司发给你的用来进出车库、

　　in and out of the building, maybe even in and out of your office, and it's an electronic card, like a credit card. 建筑物、甚至是办公室的电子卡，它是类似于信用卡的电子卡。