慢速英语:Russian President Calls for Tougher Measures to Fight North Caucasus Terrorists

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例句：We don't recognized him to be the lawful heir.
      我们不承认他为合法继承人。

承认[认清](某事物); 认识到

例句：He recognized that he was not qualified for a teacher.
      他认识到自己没有资格担任教师。

2.claim vt.声称, 断言

例句：They claim to have discovered a cure for the disease.
      他们声称已经发现了治疗此病的一种药物。

3.separatism n.分离主义

例句：China opposes all forms of terrorism, separatism and extremism.
      中国坚决反对一切形式的恐怖主义、分裂主义和极端主义。

4.suspect vt.猜疑(是), 怀疑(是), 觉得(是)

例句：They suspected an ambush.
      他们疑心有埋伏。

n.嫌疑犯; 嫌疑分子; 可疑对象

例句：Two suspects are now being interrogated in connection with the killing.
      与杀人案有关的两名嫌疑犯正在接受审讯。

5.tighten vt.vi.收紧；(使)变紧,更加牢固(使)绷紧，加紧，加强；使更加严格

例句：Border police tightened controls on tourists.
      边防警察加紧对旅游者的管制。

6.institution n.惯例, 习俗, 制度,（由来已久的）风俗习惯
 
例句：They adopted western culture, institutions, and even clothing.
      他们接受了西方的文化、习俗甚至服饰。

      The institution of slavery was once widespread.
      奴隶制度一度广为流行。