surround

名词 surround:

1. the area in which something exists or lives
   同义词：environment, environs, surroundings

动词 surround:

1. be around
   同义词：environ, encircle, circle, round, ring
2. extend on all sides of simultaneously; encircle
   同义词：skirt, border
3. envelop completely
   同义词：smother
4. surround so as to force to give up
   同义词：besiege, beleaguer, hem in, circumvent
5. surround with a wall in order to fortify
   同义词：wall, palisade, fence, fence in

1. Troops have surrounded the town.
   部队已将该城包围。
2. The house was surrounded by high walls.
   房子的四周有高墙。
3. They have surrounded the town with troops.
   他们出动军队包围了该城。
4. Trees surround the pond.
   树木围绕著池塘。
5. We are surrounded by dangers.
   我们的处境危机四伏。