Text size and contrast. Adjust the text size and contrast for comfort, especially when reading or composing long documents.

字体大小和对比度。 将字体大小和对比度调整到让眼睛舒适的水平，尤其在需要长时间阅读或处理文件的时候。

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Many people find direct sunlight to be too bright for comfort, especially when reading from white paper upon which the sun is directly shining.

许多人发现直射的阳光过于明亮而使人不舒服，特别是在阳光下阅读白色报纸的时候。

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Teaching reading and writing is a complex undertaking, especially when the learner is an adult, and the educator is an untrained volunteer.

UNESCO: Kha Ri Gude (Let Us Learn) Adult Literacy Programme (KGALP)

Teaching to tests is utterly wrong-headed, especially when those tests are crafted at the state level and devoted almost solely to math and reading.

FORBES: Thoughts on ��The Death and Life of the Great American School System�� (Part One)