Anytime is learning time. Remember, you are learning through exposure, not by nailing things down.

随时都是学习时间！

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I am now familiar enough with the language, through exposure, that I can use style and usage manuals intended for native speakers.

现在我对这门语言足够熟悉，通过不断接触，我可以使用专供母语者使用的风格和使用手册。

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The ionosphere is distinguished from other layers of Earth's atmosphere because it is electrically charged through exposure to solar radiation.

电离层与地球大气的其他圈层是不一样的，因为它是暴露在太阳的辐射之下，故而带电。

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And all of this has to be learned through exposure to language users.

而且所有这些都必须通过,暴露于拥有语言使用者的环境才能习得

耶鲁公开课 - 心理学导论课程节选

I suppose my exposure was really through the media originally.

我自己对于贫困的感受来源于媒体。

普林斯顿公开课 - 人性课程节选

Typically, increasing pressure through exposure is done incrementally, ratcheting up pressure.

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The survey of the wild animals, published in the journal Nature, builds on laboratory work which also suggests that male frogs can be feminised through exposure to the weedkiller.

BBC: Weedkiller 'threatens frogs'

Initially, it is a soft, foul-smelling matter that floats on the ocean but through exposure to the sun and the salt water over years it turns into a smooth lump of compact rock which feels waxy and has a sweet smell.

BBC: Rare whale vomit found on Morecambe beach