If the drainage system obstruction, may need surgery, will be opened up or bypass blocked sites.

若排流系统阻塞，可能需要施行手术，将阻塞部位打通或绕道。

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South Koreans are wary of attempting to access such blocked sites because they could face up to seven years in jail if caught.

韩国人访问这些被和谐的网站时很谨慎，因为如果被抓蹲 七年监狱 。

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To help people like Ms. Shi, a small but influential number of tech-savvy Chinese have been schooling their fellow citizens on how to gain access to blocked sites.

为了帮助像石玉琛这样的人，中国一批人数不多但颇有影响的科技通一直在向他们的同胞传授如何访问被屏蔽的网站。

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Brossel says that proxy servers, which allow Web users to access blocked sites by re-routing traffic through another country, are still impossible to use.

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Internet service providers would escape prosecution if they took steps to remove illegal gambling sites from their servers or blocked access to sites hosted elsewhere.

CNN: Analysis: Should the U.S. regulate or ban online gambling?

Georgian authorities blocked most access to Russian news broadcasters and Web sites after the outbreak of the conflict, and both sides reported Web sites being blocked, removed or attacked as the situation unfolded.

CNN: Experts: Internet filtering and censorship rife