名詞 blockade:

1. a war measure that isolates some area of importance to the enemy
   同義詞：encirclement
2. prevents access or progress

動詞 blockade:

1. hinder or prevent the progress or accomplishment of
   同義詞：obstruct, block, hinder, stymie, stymy, embarrass
2. render unsuitable for passage
   同義詞：barricade, block, stop, block off, block up, bar
3. obstruct access to
   同義詞：block off
4. impose a blockade on
   同義詞：seal off

1. A blockade of all the harbor of that country will require thousands of war-ships.
   封鎖那個國家的所有港口需要成千上萬艘戰(zhàn)艦。
2. Enemy ships tried to run the blockade.
   敵軍船只企圖突破封鎖線。
3. The enemy's ships blockaded the harbor.
   敵人的軍艦封鎖了港口。
4. They are threatening to impose a blockade on the country.
   他們威脅說要對該國實行封鎖。

block.ade

n.（名詞）
The isolation of a nation, an area, a city, or a harbor by hostile ships or forces in order to prevent the entrance and exit of traffic and commerce.
封鎖：用軍用船只或武裝力量隔離一個國家,一個地區(qū),一個城市或一個港口，以阻止交通和商貿(mào)的進出
The forces used to effect this isolation.
封鎖部隊：用于進行隔離的武裝力量
v.tr.（及物動詞）
block.ad.ed,block.ad.ing,block.ades
To set up a blockade against.See Synonyms at besiege
封鎖參見 besiege

【引伸】
blockad.er
n.（名詞）