sink block的意思|示意

It has gone along with a costly American-funded scheme to sink a steel barrier into the ground along its Gaza border in order to block the tunnels from Egypt that have become Gaza's lifeline.

它还施行了一项由美国资助的耗资巨大的工程，沿埃及与加沙的边境向地面打入一道钢铁屏障，从埃及一侧封堵住无数的地下通道，这些通道是加沙赖以存活的生命线。

Anything, except water, is likely to block a sink.

除了水，任何东西都有可能堵塞水池。