This only succeeds if another thread does not already have the lock, in which case the current thread is blocked.

只有在其他线程不拥有锁的情况下才会成功，如果其他线程拥有锁，当前线程就被阻塞。

youdao

If it does not, check the toilet bowl rim holes (through which the water enters the bowl) with a small mirror, and if they are blocked, clean them with a small nail and acid-based porcelain cleaner.

如果没有，那么用小镜子检查一下冲马桶的进水口，看看是不是被堵住了，用细钉子或者抗酸陶瓷清洁器清洁一下。

youdao

If the liquid does not enter or does not flow completely through one or both of your tubes, then the affected tube or tubes should be considered blocked.

如果液体完全不能进入一侧或双侧输卵管，应该考虑是受累的一侧或双侧输卵管堵塞。

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Mr Panetta said that while the remaining benefits are blocked by a federal law that does not recognise same-sex marriage, he foresaw a time "when the law will allow the department to grant full benefits to service members and their dependents, irrespective of sexual orientation".

BBC: Same-sex US military couples to get family benefits

The reason is that how clogged an artery is does not predict that it will be the one to get totally blocked off and cause a heart attack.

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But the vehicle's unique capabilities mean it does not fit into any current regulatory regime, and unless that is changed its entry into service will be blocked.

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