Drayna says the GNPTAB gene is present in all higher-order animals and contributes to humans' unique ability to communicate.

VOA: standard.2010.02.11

It's not as simple as DNA going to RNA going to protein, because proteins need to be present in order to make these things happen as well.

基因表达不是简单的从DNA到RNA,再到蛋白质,因为整个过程需要,不同酶的催化作用

耶鲁公开课 - 生物医学工程探索课程节选

Because in Illinois -- in Illinois, oftentimes you vote present in order to indicate that you had problems with a bill that otherwise you might be willing to vote for.

CNN: Part 1 of CNN Democratic presidential debate

He, much like his taxation doppelganger in Romney promised middle class tax relief, though in his case he proposed doing the impossible whereby he would try to fleece top earners even more than at present in order to close the deficit.

FORBES: Romney v. Obama Was a Nauseating Draw, and Both Deserve to Lose

At present, in order to switch water supplier, a firm or organisation must use more than five million litres of water a year at a single set of premises - in Wales that threshold is much higher, currently 50 million litres.

BBC: Queen's Speech: Meters 'missing from water bill'