Parietal cells generate stomach acid as well as a substance called intrinsic factor, which enables a vitamin called B12 to be absorbed further along in the gut.

壁细胞产生胃酸，以及一种叫做内在因子的物质，使得维生素B12能够在肠道里得到吸收。

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The proximity of mosquito vector breeding sites to human habitation is a significant risk factor for chikungunya as well as for other diseases that these species transmit.

蚊子滋生地邻近人类居住地，是基孔肯雅热重要危险因素，也会传播其他疾病。

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Overall, half the participants did about as well on the last round of tasting as on the first, so fatigue, or taste burnout, was not a factor. CET-4, 1996.1.

总的来说，超过半数的参加者，在第一轮测试和最后一轮测试中做得都是一样好，所以说感觉疲劳或感觉迟钝并不是一个要被考虑的因素。

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You measure health and you measure a factor like diet, you measure other factors that might be related as well.

你衡量其健康及饮食,还有很多其他可能有关的因素

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

My co-researchers and I in our IBM Institute for Business Value study, Collective Intelligence: Capitalizing on the Crowd, we have pointed to intrinsic motivation as well as a strong factor to drive not just individual work but collective crowdsourcing.

FORBES: Does Your Job Keep You Up in the Daytime?

The meeting aims to secure the engagement of Ministers in the creation of new sites as a contributing factor in addressing sustainable development as well as adaptation of climate change.

UNESCO: All Events | United Nations Educational, Scientific and Cultural Organization

The tendency to stick to the familiar may be a factor as well.

CNN: THE CHINESE CONNECTION