形容词
中文翻译：自动的
同义词：
['mechanical', 'automatic', 'swift', 'instantaneous例句：1. The machine is automatic', "so it doesn't need to be manually operated.（这台机器是自动的，所以不需要手动操作。）2. The automatic door locks when the car is parked.（汽车停稳后，自动门会自动锁上。）"]
例句：
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1. The machine is automatic, so it doesn't need to be manually operated.
这台机器是自动的，所以不需要手动操作。
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2. The automatic door locks when the car is parked.
汽车停稳后，自动门会自动锁上。
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3.The automatic sprinkler system was installed in the new building.
新建筑安装了自动洒水系统。