里克一点儿没变，他和上学时一模一样。
Rick hasn't changed. He looks exactly the same as he did at school.
大多数高等数学竞赛的训练都是在正常上学时间之外进行。
Most of the training for advanced-math competitions happens outside the confines of the normal school day.
这是在对智商、社会经济地位和入学时的学术技能进行控制后得出的结论。
This was after controlling for IQ, socio-economic status and academic skills at school entry.
当1816年一头小羊羔跟着小马丽·索伊尔去上学时，它惹了不少麻烦。
When young Mary Sawyer was followed to school by a lamb in 1816, it caused some problems.
她在大学时便练就了辩论技巧。
她对自己的大学时代充满了怀念之情。
当我上大学时，妈妈给我写信。
我们的生活比我们父母上学时更忙。
Our lives are busier than our parents' when they went to school.
一些志愿者计划调查学校放学时间。
Some volunteers plan to carry out a survey about the school finishing time.
我们中学时的数学老师非常不一样。
昨天下午放学时正下着大雪。
It was snowing heavily when school was over yesterday afternoon.
上小学时，他每周读四本书。
留学时，一份好的医疗保险是非常必要的。
Obtaining good health insurance is a real necessity while you are studying overseas.
当我进入中学时，我的梦想是开一家餐厅。
When I entered middle school, my dream was to open a restaurant.
当他在大学时，他从未停止对其发明的思考。
When he was at university, he never stopped thinking about his invention.
在高中和大学时，你也许被鼓励去国外旅游或学习。
In high school and college, you may be encouraged to travel or study abroad.
由于新冠肺炎疫情，中国的很多学校推迟了开学时间。
A lot of schools across China put off starting classes because of COVID-19.
第一次申请大学时，这两个学生在选择专业方面不够明智。
The two students were not wise enough to choose their majors when they first applied to go to college.
昨天，当他听说将有一顿火锅来欢迎新同学时，他非常兴奋。
Yesterday he was very excited when he heard that there was going to be a meal of hot pot to welcome the new students.
我在学校创办了一份报纸，并在大学时为一份学生报纸工作。
I started a newspaper at school and worked on a student newspaper at university.
一天，我正准备上学时，母亲不小心错把父亲的背心拿给了我。
One day, as I was getting ready for school, my mother carelessly handed me my father's vest instead of mine.
在高中学习化学时，我重新考虑了我的目标，决定成为一名医生。
When I studied chemistry in high school, I reconsidered my goal or decided to be a doctor.
大学时，巴拉克·奥巴马并不知道他会成为美国第一位黑人总统。
At college, Barack Obama didn't know that he would be the first black president of the United States of America.
它通常有关于科学时事的文章和故事，也有关于研究新进展的论文。
It usually has articles and stories about current affairs about science, as well as papers about new developments in research.
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