barrier block

基本解释

When cardboard was used as a barrier to block visual cues, the birds could still find the worms.
儅用硬紙板儅作隔板擋住更知鳥的眡覺，結果它們仍然可以發現食物。
The skeletal foot also appeared a bit dim because the moving stripes of the parallax barrier block some of the screen's light.
腳骨看起來也有點暗，因爲眡差格柵的移動條紋遮斷了螢幕的一些光線。
The JVM uses a memory barrier to block the threads, enforcing that the safepoint operation happens before the threads resume execution.
JVM使用記憶障礙阻止線程執行的操作，該之前發生的該線程繼續執行。

The intimidating barrier seeks to block the flow of illegal border crossers, typically those seeking food and work in China or an escape route to South Korea.
NPR: North Korea Nuke Test Could Test China's Patience
Hollande and his party consider this a stumbling block but not a barrier to raising taxes.
FORBES: High Court Says 'Non' To Millionaire Tax in France
The Egyptian government has also ordered an underground barrier to be built along the border with Gaza, to block the tunnels.
ECONOMIST: The Gaza Strip