1.as effective as 和...一样有效

例句：Research has shown this scent may be as effective as sleeping pills.
研究表明：这种香味同安眠药一样有效!dUI(OnT3Th8v%#~。

2.sleep disorder 睡眠障碍

例句：Your depressed patient may have a potentially life-threatening sleep disorder.
你的患抑郁症的病人可能有潜在的威胁生命的睡眠障碍Y^l3J%_[q^hW+#D8E3。

3.a variety of 各种各样的

例句：Man is host to a variety of pathogenic bacteria, protozoa, and viruses.
人是各种致疾的细菌、原生动物以及病毒的宿主9qPa.*ivS2cz~;U@HFVy。

4.mental illnesses 精神疾病

例句：Only a quarter of children with these mental illnesses receive effective treatment.
患精神疾病的儿童中，仅有四分之一的人得到了有效的治疗GQIzz3H+5D2v9cv|v~O。