Others have less rigid currencies but still intervene to stem what they regard as excessive upward pressure.

其它国家汇率没这么僵硬，但仍进行干预以抑制他们认为过度的升值压力。

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Alice pointed at the stem. "What does this do?" she asked. "Have you ever used a straw?" the voice asked.

爱丽丝指着茎问道，“它用来做什么？”“你用过吸管吗？”声音问道。

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That was Wednesday. On Thursday the world leaders meet in working sessions to discuss what to do to stem the global recession and get back on the road to growth.

VOA: standard.2009.04.01

Those are obvious what the differences are, embryonic stem cells are derived from embryos .

这些名称就明确揭示了它们之间的区别,胚胎干细胞是源自于胚胎

耶鲁公开课 - 生物医学工程探索课程节选

But from what I know, generally the more religious groups tend to be opposed to stem cell research,

但是一般来说，就我所知越是反对干细胞研究的人，

关于干细胞的研究 - SpeakingMax英语口语达人

Others have less rigid currencies but still intervene to stem what they regard as excessive upward pressure.

ECONOMIST: Currencies

The scientists say that growing especially inviting plants could be a way for people to help stem what has been called a "catastrophic" decline in UK bumblebee populations.

BBC: A bumblebee extracting nectar and pollen from a snapdragon

That's all good news and we are pleased that the actions that we took swiftly through the Recovery Act helped to stem what could have been a disastrous situation for the economy and we are starting to see stabilization and, indeed, some improvement.

WHITEHOUSE: President Obama: ��Economy Back from the Brink��