There are some markers.

这有一些马克笔。

youdao

Can the factory make markers?

这家工厂生产马克笔吗？

youdao

Show me three red markers.

给我看看三支红色马克笔。

youdao

Bio-markers help researchers know what is happening in the bodies of people with a disease or medical condition.

VOA: special.2011.08.02

That means that a group of people who were identified and then re-measured every other year on -to getting blood tests and other biological markers, as well as doing assessments of their lifestyle behaviors and a number of other things.

就是说有一群特定的人,然后每隔几年,就要接受血液及其他生物学测试,还要对他们的生活方式等进行评估

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The newly-found genetic markers may affect a person's risk of developing Alzheimer's.

VOA: special.2009.09.15

However, these targets - all be they only long term markers - show that Ministers are prepared to provide criteria by which they can be judged in their attempts.

BBC: Minding the health gap

It has been so long since a bin Laden message (and we always look in those messages for date markers - does he make reference to a specific event, such as the election, which would tell us he was alive at a certain date?) that I keep getting the same question: how do we know Osama bin Laden is still alive?

CNN: Bin Laden: Alive or dead -- and how would we know?

Manfred Kayser says ancestry markers can - at best - trace an individual to a broad region: "Human migration history has produced no sharp genetic borders and no sharp appearance borders, " he explains.

BBC: Painting a suspect's portrait with DNA