restrict

• The use of this kind of drug is restricted in many countries .
  许多国家禁止使用这种药品。
• These studies are necessarily restricted to simple molecules .
  这些研究只局限于简单的分子。
• " current " has the most restricted and neutral meanings .
  “Current”的词义最狭窄，最中性。
• I am restricted to advising .
  我只限于劝导。
• I am restricted by time .
  我受时间限制。
• This area isolates a restricted lagoon environment .
  将这一地区隔离起来使形成一个封闭的泻湖环境。
• Today in the u.s cigarette smoking is restricted in many ways .
  今天在美国用各种各样方式限制抽烟。
• The experiment is mostly restricted to the potential gene flow .
  这项试验多半只涉及可能的基因流动。
• The number of cationic bromine and chlorine compounds is restricted .
  溴、氯阳离子化合物的数量受局限。
• The use of earom's has been restricted so far to military applications .
  EAROM的使用至今还只限于军事方面。