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1·The nasal spray was new on the market and highly efficacious.

这种鼻腔喷雾剂是市场新品，非常有效。《柯林斯英汉双解大词典》

2·One such factor is the evolution of downsizing into a powerful business myth: managers simply believe that downsizing is efficacious.

其中一个因素就是缩小规模已经演变成一个强大的商业神话：经理们单纯地相信缩小规模是有效的。

3·They hope the new drug will prove especially efficacious in the relief of pain.

他们希望这种新药能在缓解疼痛方面产生特效。《牛津词典》

4·This medicine is highly efficacious.

这药很灵验。《新英汉大辞典》

5·It is efficacious simply because it is God's grace.

它是有效的简单，因为它是上帝的恩典。

6·The therapy seems to be very efficacious for lumbago.

此疗法是治腰腿痛的一种有效疗法。

7·Qingdao is a resort efficacious for a variety of bodily ills.

青岛是一个对各种身体疾病都有疗效的疗养胜地。

8·A particularly efficacious, good, or beneficial quality; advantage.

尤其灵验的、好的或受益的品质；长处。

9·Love is efficacious, but it is expressed by idiographic activities.

爱是属灵的，但又要通过具体的方式表现出来。

10·Conclusion IVIG therapy is safe and efficacious to children with GBS.

结论IVIG治疗儿童gbs是一种安全有效的方法。