Synchronized methods and blocks allow a thread to lock an object on entry and unlock the object on exit (to the method or block).

同步的方法和代码块允许线程在入口处锁定对象并在出口处解锁(针对方法或代码块)。

youdao

Distance is no object. You could be hundreds of miles away, and if you can reach someone who has the other 'remote' for your car, you can unlock the doors (or the trunk).

距离不是问题，你可以在数百英里之外，只要你能接通某个有你车的另一“遥控”的人，你就能解锁车门(或车尾箱)。

youdao