valerian [vəˈlɪriən]

例句:

• No less pleased than...cats...when they purr over a new-found sprig of valerian.
  来自C. Lamb
• Eight others did not contain as much valerian as expected.
  其它8种产品中,所期望的镇静剂含量不足.
  
• Valerian is a safe and effective sedative with reliable results for most kids.
  缬草是安全有效的镇静剂,对大多数儿童很有效.
  
• Nighttime teas and the herb valerian also have been shown to aid sleep.
  夜茶和颉草植物镇静剂也有助睡眠.
  
• Valerian has been shown to reduce anxiety in rats.
  来自WSJ
• Many of the studies on valerian are small or lack placebo controls.
  来自WSJ