What is ideally needed is the ability to lock a resource, verify its availability, and unlock it if no longer available.
理想的方式是能锁定资源、确认其可用性并在不再使用时解除其锁定。
What is ideally needed is the ability to lock a resource, verify its availability, and unlock it if no longer available.
理想的方式是能锁定资源、确认其可用性并在不再使用时解除其锁定。
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