The nasalspray 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
A new influenza vaccine, administered painlessly in a nasalspray, is effective for children.
一种新的流感疫苗以无痛的鼻喷剂接种，对儿童有效。
3
Since children seldom develop serious complications from influenza, no significant public health benefit would result from widespread vaccination of children using the nasalspray.