英汉词典

1. 自动的;自动化的
    An automatic machine or device is one which has controls that enable it to perform a task without needing to be constantly operated by a person. Automatic methods and processes involve the use of such machines.

    e.g. Modern trains have automatic doors.
           现代火车装有自动门。

2. 自动枪
    An automatic is a gun that keeps firing shots until you stop pulling the trigger.

    e.g. He drew his automatic and began running in the direction of the sounds...
           他拔出自动手枪，向声音传来的方向跑去。
    e.g. The gunmen opened fire with automatic weapons.
           歹徒用自动武器开火了。

3. 自动挡汽车;自动变速汽车
    An automatic is a car in which the gears change automatically as the car's speed increases or decreases.

automatic的意思

4. 无意识的；不假思索的
    An automatic action is one that you do without thinking about it.

    e.g. All of the automatic body functions, even breathing, are affected.
           身体所有的无意识功能，甚至呼吸，都受到影响。