In this case, you use something a bit more powerful: PHP's preg_replace, which takes a regular expression as its search term.

在本例中，您使用了更为强大的方式：PHP的preg_replace，它接受正则表达式作为其搜索关键词。

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Because of Scala's inline expression evaluation facilities where XML literals are concerned, this means that making the servlet a bit more interesting becomes much easier.

Scala的内联表达式求值工具使用xml字面值，这意味着能够轻松地使servlet更有趣。

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To assess gene expression in each small bit of tissue, researchers expose its RNA to a gene chip, or DNA microarray.

为了评价每小片组织中的基因的表达情况，研究人员将它的RNA暴露给一个基因芯片，或者DNA阵列。

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I ended with this picture that shows you a little bit about control of gene expression.

我用这幅图结束了上一节课,图上讲了一些关于基因表达调控的内容

耶鲁公开课 - 生物医学工程探索课程节选

I want you to look at this picture, read the little bit about gene - control of gene expression - that's in the book, know that it's a big topic, that we're not going to talk about it except we're going to talk about some examples where control of gene expression can be exploited in order to treat diseases, for example. So I'll see you on Thursday.

所以我希望你能看一下这张图,读一些,教材里基因调控的章节,这是个很大的话题,我们不会进一步深入去探讨,但一些基因调控,用以治疗疾病的例子,我们可能还会在之后的课程中讲到,那我们周四见了

耶鲁公开课 - 生物医学工程探索课程节选

The soft touch of the family, their father had called him, and used that same expression, laughing a bit, when Bartholomew first wanted to become a clergyman.

NEWYORKER: Faith

The only bit of slightly good news, and I hesitate to use that expression at all, was the discovery that the culprit was a deranged Norwegian right wing extremist of the Unabomber ilk and not a foreign jihadist, as had been widely assumed by everyone I spoke to in Norway.

FORBES: What I Learned In Norway During The Terrorist Attacks