Throughout Sichuan, the specification is grade seven on a scale of up to10.The same level applies in Shanghai.

First, I examined and verified some teaching biological teaching materials including teaching plans and courseware for grade seven this evening.

今天晚上，首先我审核了七年级生物的一些教学材料，包括一些教案和课件。

The Research and Practice of the Teaching Pattern of Cooperative Study in Grade Seven Geography

七年级地理合作学习教学模式的研究与实践

And the subjects in this experiment are 75 students from two classes in Grade Seven, and the experiment lasts for one year.

该实验的对象是来自七年级的75名学生，并且该试验持续了一年的时间。

Lan Lan, a student of Grade Seven in Lushan, was taking a drawing class in a tent on April 23.

4月23日，庐山七年级学生兰兰正在帐篷里上绘画课。

I spent the whole night in sorting out the questions in last year's biology testing paper for Grade Seven students.

整个晚上，我都在分类整理去年的七年级生物期末测试卷。

The Research on Content System of Geography Aesthetic Education in Grade Seven

七年级地理美育内容体系研究

I download many biological teaching materials about the first volume of grade seven's textbook recently.

最后，我下载了许多关于七年级生物上册教材的教学资料。

Anyway, I finished editing grade seven's test paper at last.

无论如何，我终于编辑完了七年级的考试题。

The tracking objects are both the English teachers of grade seven.

笔者所跟踪的两名对象都正任教于七年级，在本研究中它们分别被称为老师A和老师B。

Vocabulary is a very important part of English knowledge. However, many students have difficulty in learning vocabulary, especially for beginners such as junior high school students of Grade Seven.

词汇是英语知识非常重要的部分，然而很多学生，特别是初学者在词汇学习上有很大困难，例如七年级的学生。

But my two best friends guild me to watch the games when I was in Grade Seven.

当我升上七年级（初一）时，两个最要好的朋友开始指引我看比赛。

Third, I made a biological courseware for grade seven's new students this evening.

第三，今天晚上我为七年级的新生做了一个生物课件。

And I just examined and verified some biological teaching plans for grade seven.

而我只是审核了一些七年级生物教案。

Each leap year we add that day onto the end of February.

每个闰年我们都要在二月底加上一天。

This time was added as an extra day during each leap year.

在每个闰年里，这些时间就被加总起来成为多出来的一天。

It also introduces the concept of the leap year to students in an interesting way.

它也用有趣的方式，将闰年的概念介绍给学生。

Over the years, their siren has been transformed from a bare-breasted mermaid grasping a tail in each hand to a more graphic, family-friendly image.

多年下来，当初创店时裸露胸部、双手各抓著一条尾巴的美人鱼图像已经改变成现今这个更图像化，阖家接受的女海妖图案。

Sculptures and reliefs of a bare-breasted or semi-bare-breasted Marianne, a French symbol of the revolution and liberty, can still be found on government documents, buildings and postal stamps.

法国革命与自由的象征是一个裸胸或半裸胸的女子，名叫玛丽安（Marianne），她的雕像和浮雕仍然可以在政府文件、建筑和邮票上看到。

Her mother marched about the flat in her underwear sometimes braless and sometimes on summer days stark naked.

母亲穿着内衣在房子里冲来冲去，有时候乳罩都不戴，夏天，有些时候则干脆完全光着身子。

I stand with you in stupidly bra-less solidarity. And so do these 29 other sexy braless stars.

其他29名拥有相同经历的性感明星也会支持你们的。