By fifth grade, a child at the bottom of the class reads only about 60, 000 words a year in and out of school, compared to a child in the middle of the class who reads about 800, 000 words a year.

到五年级的时候，班级落后的学生一年课内课外阅读量只有六万字，班级中等的学生一年大概读了八十万字。

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Our study can be divided into two parts: one is in class and the other is out of class.

我们的学习可以分为两个部分：一是在课堂上学习和一个是课外学习。

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In class, teachers must apply language according to different student levels, and they should use exact, clear, fluent and contagious language to infect students out of class.

教师在课堂教学中必须根据学生的不同层次运用语言，并在课堂外，用准确清晰、流利的具有感染力的语言影响学生。

youdao

What are your future plans in helping middle-class America -- Generation X and Y and middle-class America will get the country out of where we are, and I want to know what are your contingent plans?

WHITEHOUSE: Rural Tour Day 3: Atkinson, Ill Town Hall

There will be a fireworks display every night, but subdued enough not to interfere with flights in and out of Chek Lap Kok airport or with residents of Discovery Bay, a middle-class housing enclave along the Lantau coast.

CNN: Making A Magic Kingdom

As the most populous city in the United States, New York has plenty to offer in terms of first-class restaurants, world-famous museums and far-out fashions.

BBC: Easy breaks from New York City