If the test is positive, a course of antibiotics may be prescribed.

如果化验结果呈阳性，可能要开一个疗程的抗生素。

《柯林斯英汉双解大词典》

The report ended on a positive note.

报告的结尾显得很乐观。

《牛津词典》

Most likely, both sides will put on as positive a face as possible, but expect the acrimony to continue as both sides come to grips with an increasingly complicated relationship.

最有可能的是，双方将尽可能拿出积极的面孔，但由于双方要对付日益复杂的关系，预计激烈的争论将继续下去。

youdao

In other new research, a study has found that circumcision does not decrease the risk that H.I.V.positive men will infect women.

VOA: special.2009.07.29

dT/dp is mu JT. So for a real gas like air, this is a positive number. It's not zero.

所以对于像空气这样的真实气体，这是一个正数，不等于零。

麻省理工公开课 - 热力学与动力学课程节选

If we think that our knowledge is positive, we say "red" in a red light means stop.

如果我们主动认知，红灯的意思是停。

耶鲁公开课 - 文学理论导论课程节选

You are given the following information. (a) In random testing, you test positive for a disease. (b) In 5% of cases, this test shows positive even when the subject does not have the disease. (c) In the population at large, one person in 1, 000 has the disease.

ECONOMIST: Getting the goat

An appreciation in the dollar will change the impact of net exports from a positive to a negative.

FORBES: Magazine Article

There was no clear consensus as to whether the increase in the dollar volume of proposed deals was a positive or a negative.

FORBES: Bullish Sentiment Continues To Wane