They asked me to sit down on the chair and had class.
他们叫我坐到椅子上上课。
States had at least three social levels, usually, an upper class of rulers, a middleclass comprised of managers and merchants, and a lower class of crop producers and agricultural laborers.
国家中至少有三种社会阶层，上层阶级（执政），中产阶级（商人，管理者）和下层阶级（农民，工人）。
Our teacher told us about projects other classes had done for Earth Day, and she asked for suggestions for our class projects.
我们的老师给我们讲了其他班为地球日做的项目，并就我们班的项目征求了我们的建议。
It should be noted that the two groups of children had been carefully matched by the investigators so that they were comparable in age, ethnicity, race, and social class.
值得注意的是，调查人员对这两组儿童进行了仔细的比对，以便他们在年龄、民族、种族和社会阶层方面具有可比性。
With the encouragement and the money provided by the teachers, they had a paper folding class every Wednesday afternoon.
在老师的鼓励和资助下，他们每周三下午都要上一节折纸课。
It's a pity Martha and I had to miss our class last week.
很遗憾，我和玛莎上周不得不缺课。
They had to be back at their colleges this week to enrol and work out class schedules for the new term.
他们这周必须回到学院注册，并制定出新学期的课程表。
I had just enough time to finish eating before the bell rang and I was off to my first class.
我在铃响前刚好有时间吃完，然后就去上第一节课了。
Just then the bell rang and they had to hurry to their science class.
就在那时，铃响了，他们得赶紧去上科学课。
My mother had taught me to knit at 15, and I knitted in class throughout college and for a few years thereafter.
在我15岁的时候，我母亲便教我编织，于是整个大学期间我都在课堂上练习编织，之后的几年也一直如此。
Goel and his team sourced the online discussion forum to find all the 40,000 questions that had ever been asked since the class was launched.
戈埃尔和他的团队在网上论坛上找到了这门课开设以来被问过的4万个问题。
But Goel and his team sourced the online discussion forum to find all the 40,000 questions that had ever been asked since the class was launched.
但戈埃尔和他的团队在网上论坛上找到了这门课开设以来被问过的40000个问题。
The flight attendants were very thankful for what we had done and cared for us carefully even though we were no longer sitting in first class.
空乘人员非常感谢我们所做的一切，即使我们不再坐在头等舱，也细心照顾我们。
It was Monday morning, and the writing class had just begun.
那是星期一的早晨，写作课刚刚开始。
After all, it was her birthday too and no one in her class had even said happy birthday.
毕竟，那天也是她的生日，而她班上甚至没有一个人说生日快乐。
After the rest of the class had tried, the teacher said Tom had done best and he gave Tom the prize.
全班剩下的同学都尝试过之后，老师说汤姆做得最好，于是他给了汤姆奖品。
In order to pass the class, among other criteria, we had to write a paper on how we plan to apply what we would learn in class to our future professions and, eventually, to our lives.
为了通过这门课，除其他标准外，我们还必须写一篇论文，来说明我们计划如何将课上所学应用于未来的职业，并最终运用于生活中。
After class, a little girl walked up to me and asked, "Could you help me to read this?" with the most excited face I have ever seen as if she had just gotten a cookie.
下课后，一个小女孩走到我面前，问我：“你能帮我读一下这个吗？”她带着我见过的最兴奋的表情，好像她刚刚得到了一块饼干。
A paper from Science of the Total Environment shows that the largest freshwater fish in China might have gone extinct between 2005 and 2010. Wei Qiwei, author of the paper, said in September, 2019, some experts supposed that the first-class protected fish had been extinct already.
《整体环境科学》的一篇论文显示，中国最大的淡水鱼可能已经在2005年至2010年间灭绝了。2019年9月，该论文的作者危起伟表示，一些专家认为这种一级保护鱼类已经灭绝。
His class had a very methodical and systematic foundation, but he himself was someone that couldn't be predicted at all.
他的课看起来很有计划和条理，但他实际上是一个你很难想象的不可捉摸的老师。
The truth is, that year Matt and I had 5 classes together. Except for Ms. S's class, we had A's in every class.
这一年，我和麦德有5门课是在同一个班上的(美国实行走课制),就除了斯小姐这门课，我们俩门门是A！
There were 45 students in one second-grade class, and the teacher had them well under control.
在一个二年级班，通常有45名学生，教师对他们进行有效的管理。
Dante and I had become acquaintances when one day after class he had announced an event sponsored by my favorite chocolate company. There would be free chocolate.
但丁和我是在一次下课后熟识的，那次课上他宣布一个项目被我最喜欢的巧克力公司赞助，那将是免费的巧克力啊。
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