Second, if the inferior BPDU arrives on the Root Port, all blocked ports become potential alternative paths to the Root Bridge.
到达了我的根端口，那么我的所有阻塞端口都将变成潜在的到达根的备选路径。
2
Built nearly a century ago to provide power to lumber and paper mills in the town of Port Angeles, these dams blocked access to upstream spawning beds for six species of salmon.
这些大坝建于近一个世纪以前，是为洛杉矶港的木材和造纸厂提供电力的，大坝阻断了6种鲑鱼的上游产卵地。
3
Subsequent cables showed that the United Arab Emirates blocked the transfer of the Siemens computers across the Strait of Hormuz to Bandar Abbas, a major Iranian port.