So their preventive use is typically for short-term situations, such as for family members of someone who has the flu.

因此，它们一般只具有短期的预防作用，如在某位家庭成员感染流感的情况下。

youdao

Objective To study on the method for preventive use of antibiotics in selective cesarean section.

目的探讨选择性剖宫产术预防性应用抗生素的方法。

youdao

OBJECTIVE: the preventive use of antibiotics before operation and examine the effect of preventing infective complications.

目的：术前预防性应用抗生素，以观察感染性并发症的预防效果。

youdao

The U.N.AIDS agency gives credit to better use of preventive measures.

VOA: special.2010.07.14

Often because of cost, Americans use preventive services at about half the recommended rate, according to research cited by the White House.

WSJ: White House to Unveil List of Free Preventative Services

Currently, Americans use preventive services at only about half the recommended rate.

WHITEHOUSE: Blog Posts Related to the African American Community

Use of preventive services can also help bring costs down in a variety of ways.

WHITEHOUSE: Blog Posts Related to the African American Community