包围

• Many of the pathogenic organisms may be encased in the particles .
  许多致病生物体可能被粒子所包围。
• Even here the all-pervading noise was still around them .
  甚至在这里，弥漫一切的声音仍然包围着他们。
• The enemy invested the city and cut it off from our army .
  敌人包围了那座城市，并把它同我们的军队隔开。
• Who should these be that lie about her secretly by night ?
  这批深更半夜偷偷地包围着她的会是什么样的人呢？
• The capsid together with the enclosed nucleic acid is the nucleocapsid .
  衣壳同包围它的核酸一起称为核衣壳。
• The set of edges which bound the region is the contour of the region .
  包围某区域的边的集合称为区域的周线。
• A wall of thousands of enemy troops constantly surrounded them .
  千千万万敌军所组成的一道长城时刻包围着他们。
• Surrounded heavily by our troops , the enemy were like a fish in the pot .
  敌军被我军重重包围，已成为釜底游鱼。
• A wall of thousands of enemy troops constantly surrounded them .
  千千万万敌军所组成的一道活动长城时刻包围着他们。
• They gave a pledge that there would be no circumvention via third countries .
  他们保证不会有通过第三国进行包围的事。