Write the letters and words on the exercise books.

在作业本上练习书写单词及句子。

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We would have been communicating and recording information by using sounds and symbols in place of writing letters and words.

我们将会用声音和符号来进行交流，而不是通过书面的字母和词语。

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Computer programs like speed reader or Rapid reader are designed to help readers improve reading speeds with flashing letters and words.

有些软件，如“速读”和“快读”，就是专门设计通过闪烁字母和单词来提高人们阅读速度的。

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All the time, I was busy forming letters and words in her hand with my fingers.

VOA: special.2009.11.08

He added words from President Lincoln's speeches and letters.

VOA: special.2009.06.21

At first, you just try to get letters and make words.

FORBES: Grab the Kids, an iPhone and Get Outside for Some Spelling

Helping a child use several senses to learn for example, by listening to a taped lesson and tracing with a finger the shape of the letters used and the words spoken can help him or her process the information.

CNN: Dyslexia

The exact order of the DNA bases which for the average person is a sequence of about three billion determines the meaning of the biological instructions stored in genes and chromosomes, just as letters of the alphabet make up words and sentences.

WSJ: Harvard Researchers Turn Book Into DNA Code